FOREST GROVE, OR

Average of Minimum Temperature (Degrees Fahrenheit)

(352997)

File last updated on April 18, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)	JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC		ANN
1893	23.84		29.11		33.06		35.23		41.52		43.33		47.00		-----	z	44.67	u	36.45		33.40		35.58		35.85	b
1894	31.97		27.14		32.68		37.60		42.43	a	48.74	k	-----	z	-----	z	-----	z	39.41	b	37.73		30.70	a	34.96	d
1895	29.48		35.21	d	31.19		38.07		42.61		-----	z	-----	z	-----	z	-----	z	37.68		32.33		33.97		35.07	d
1896	33.57	a	35.69		32.35		36.80		41.55		46.23		-----	z	-----	z	43.90	a	37.68		30.97		36.55		37.53	b
1897	31.81		35.21		32.52		40.60		46.39		48.33		-----	z	-----	z	43.93	a	39.32		34.87		34.45		38.74	b
1898	30.16		36.04		31.55		38.17		40.48		-----	z	-----	z	-----	z	-----	z	38.29		32.57		28.45		34.46	d
1899	32.94		26.79		31.27	a	36.30		40.32		-----	z	-----	z	-----	z	-----	z	38.07	b	43.67		33.55		35.36	d
1900	32.77		31.89		38.61		37.43		44.23		49.18	m	-----	z	-----	z	-----	z	39.16		34.43		35.83	a	36.80	d
1901	30.28	b	31.88	c	34.10	b	35.93		45.45		-----	z	-----	z	-----	z	-----	z	45.68		39.40		34.45		37.15	d
1902	31.23		38.00	b	35.37	a	38.33		44.19	d	-----	z	-----	z	-----	z	-----	z	41.71		36.67		33.00		37.31	d
1903	34.06		27.93		30.94		34.70		42.63	a	49.40		48.10		49.03		43.40		39.97		36.53		36.06		39.40
1904	33.68		32.86		35.61		40.90		40.68		46.60		48.26		46.29		45.07		40.10	a	41.60		34.46	c	40.51
1905	29.72	b	31.14		39.06		38.73		43.06		46.37		50.13		48.39		45.50		38.06		30.83		31.23	a	39.35
1906	34.13		32.00		31.65		37.73		42.74		44.70		52.10		47.62	b	42.18	b	38.52		35.20		32.65		39.27
1907	24.96	d	32.54		32.13		36.23		40.26		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	33.22	g
1908	34.87		33.69		35.84		37.70		39.65		-----	z	-----	z	45.21	g	43.33		37.83	b	38.17		31.74		36.98	c
1909	18.90		36.96		35.29		36.90		41.42		44.63		46.60	a	46.73	p	41.59	m	41.55		37.93		25.74		36.59	b
1910	28.79	c	31.46		38.39		38.27		43.45		-----	z	-----	z	-----	z	-----	z	41.84		36.47		34.45	k	36.95	e
1911	29.70	a	31.04		33.06		33.83		40.00		-----	z	51.65		48.13		44.77		37.90		35.63		32.94		38.06	a
1912	33.29		33.17		32.68		38.33		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	34.37	h
1913	31.27	e	28.10	r	33.07	a	37.83		47.32		50.52	c	51.45		-----	z	-----	z	-----	z	-----	z	-----	z	41.91	f
1914	-----	z	-----	z	40.30	h	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1915	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z
1916	-----	z	-----	z	-----	z	-----	z	-----	z	47.57		50.77		54.74		47.90	a	36.61		32.77		31.65		43.14	e
1917	31.16		32.63	a	32.97		38.43		41.84		45.47		51.55		52.19		49.97		40.00		38.30		42.03		41.38
1918	38.16		33.04		36.68		36.67		40.71		49.17		51.23		51.90		50.10		43.94		37.93		34.10		41.97
1919	33.55		34.93		37.19		39.93		42.61		45.30		49.87		50.10		47.70		37.68		37.70		27.68	c	40.35
1920	31.97		29.76		35.13		37.30		37.94		46.40		50.48		51.45		48.53		43.26		36.43		37.65		40.52
1921	34.48		36.68		37.29		37.97	a	42.90		50.50		46.68		48.90		43.90		42.77		39.23		31.35		41.06
1922	27.48		30.54		33.52		35.23		42.94		47.13		49.13		51.48		47.77		43.97		32.43		30.55		39.35
1923	35.26		27.25		33.87		39.20		43.48		47.30		51.10		51.84		46.33		41.74		37.83		34.45		40.80
1924	29.74		38.83		34.00		37.53		42.90		46.33		48.29		48.87		45.27		42.61		35.00		26.39		39.65
1925	35.71		38.00		35.10		40.47		45.74		46.67		50.26		48.87		47.07		39.81		37.43		35.74		41.74
1926	31.77		37.89		36.55		41.80		43.32		48.00		49.16		50.10		44.83		44.06		39.53		33.00		41.67
1927	31.87		34.61		34.35		37.63		42.06		49.10		50.52		50.61		47.30		41.84		40.83		29.83	a	40.88
1928	30.48		32.48		39.19		39.47		43.61		47.76	a	50.55		48.13		45.37		41.97		36.17		30.03		40.43
1929	25.90		22.93		35.58		36.03		41.39		47.60		48.10		47.84		43.53		41.42		29.53		35.58		37.95
1930	17.13		35.71		35.29		40.23		40.06		45.40		48.29		50.74		48.57		38.55		34.63		31.35		38.83
1931	34.77		32.89		37.83	a	39.40		44.77		47.63		50.29		48.52		46.97		40.48		33.13		32.65		40.78
1932	31.48		32.21		38.48		40.17		41.87		47.93		47.48		52.23	a	45.77		43.48		38.57		27.65		40.61
1933	32.06		29.32		35.77		36.13		41.42		46.80		49.48		51.71		45.80		42.87		36.07		39.58		40.59
1934	38.29		36.07		39.45		42.87		45.00		45.93		50.61		50.73	a	47.43		43.97		41.93		35.55		43.15
1935	31.03		34.43		34.26		37.03		40.19		48.40		49.97		50.29		47.50		39.90		32.40		31.42		39.74
1936	35.13	a	26.62		33.03		40.90		46.06		49.97		50.10		49.10		45.17	a	39.23		28.60		35.97		39.99
1937	21.26		32.50		38.52		38.20		42.97		50.93		51.77		50.13		48.53		44.90		41.77		35.55		41.42
1938	32.71		33.79		35.52		39.97		42.26		47.53		52.19		47.58		51.27		43.84		34.97		34.17	a	41.32
1939	35.97		31.54		36.16		38.77		42.87		46.20		51.35		51.42		48.34	a	44.42		37.97		39.33	a	42.03
1940	33.48		39.00		39.84		40.48	a	45.71		48.07		51.32		51.97		51.50		47.42		34.77		36.00		43.30
1941	34.81		35.43		38.77		39.70		44.13		48.37		53.84		53.65		48.10		42.90		39.73		35.58		42.92
1942	27.97		34.68		34.23		39.97		44.29		47.37		53.23		52.52		47.37		43.03		37.40		37.29		41.61
1943	26.61		32.79		34.45		41.13		42.03		47.07		51.16		50.00		48.73		45.29		36.40		31.45		40.59
1944	30.94		33.45		34.39		39.60		43.35		46.90		50.55		50.68		49.47		45.10		37.00		30.71		41.01
1945	34.77		36.25		35.87		38.47		45.74		46.90		51.55		51.19		45.93		41.55		38.57		34.55		41.78
1946	33.48		35.25		36.45		38.37		44.61		47.83		51.71		50.06		46.83		40.16		34.53		35.27	a	41.21
1947	29.26		35.79		38.42		41.77		45.81		48.00		50.23		48.81		48.10		45.74		37.93		35.35		42.10
1948	31.06		31.79		34.32		38.30		44.13		52.10		50.23		51.87		46.63		40.97		36.00		30.45		40.65
1949	16.94		30.71		36.77		39.47		45.55		47.67		49.61		50.52		46.80		36.35		39.63	c	34.58		39.55
1950	21.47	a	33.15	a	37.45		37.43		41.03		49.00		50.94		51.58		46.37		43.39		39.00		40.32		40.93
1951	31.97		34.00		32.06		38.33		44.16		48.47		51.83	a	48.81		47.50		43.52		37.87		31.74		40.85
1952	30.48		33.93	a	35.58		38.17		42.60	a	48.76	a	50.68		50.19		45.97		41.97		28.13		32.71		39.93
1953	39.52		33.82		35.48		38.23		42.94		45.90		49.06		50.29		45.72	a	40.61		40.37		36.65		41.55
1954	32.23		33.93		31.74		37.73		43.29		47.00		48.52		50.13		46.87		38.87		42.03		34.38	b	40.56
1955	32.71		32.56	a	32.68		35.40		40.68		47.33		49.10		46.52		45.97		44.10		35.17		33.29		39.62
1956	33.74		28.72		35.81		39.43		45.19		47.00		52.03		51.42		46.93		42.06		32.40		33.55		40.69
1957	24.35		33.75		39.23		40.07	a	46.81		47.72	a	47.58		46.71		48.13		42.60	a	32.63		37.19		40.57
1958	36.35		41.79		34.87		39.53		46.10		52.73		52.58		51.26		48.37		40.55		38.80		39.45		43.53
1959	35.81		34.89		36.58		39.70		43.16		50.07		53.48		49.06		47.67		43.39		35.30		33.07	a	41.85
1960	30.61		34.28		36.10		40.17		44.39		48.43		51.45		51.87		47.70		43.13		38.20		31.87		41.52
1961	37.29		40.61		39.03		41.43		45.06		51.27		53.42		54.39		44.97		41.48		33.83		35.55		43.19
1962	29.52		35.04		35.19		40.70		43.10		46.47		49.90		51.65		48.60		43.84		40.63		36.03		41.72
1963	27.48		40.00		36.29		40.40		43.81		49.30		50.61		52.55		50.63		43.68		39.10		32.97		42.24
1964	36.29		30.86		34.97		36.23		40.26		48.53		52.55		50.55		46.77		40.61		35.00		33.00		40.47
1965	34.84		36.36		33.84		40.17		40.58		46.03		51.84		54.13		44.87		44.45		41.73		32.87		41.81
1966	34.68		34.29		36.74		39.63		42.42		47.90		51.94		51.00		50.70		41.39		40.90		39.71		42.61
1967	38.87		34.71		35.71		35.50		42.23		51.87		51.77		53.71		48.17		44.48		38.60		35.19		42.57
1968	33.68		37.14		39.10		37.00		44.06		48.97		52.48		53.16		48.83		41.74		38.73		33.03		42.33
1969	27.90		32.54		33.68		38.83		45.70	a	55.13		51.42		49.32		51.07		40.65		36.93		36.00		41.60
1970	34.77		34.75		35.55		37.57		41.90		50.70		51.58		51.77		45.97		38.97		38.40		34.26		41.35
1971	34.32		34.21		34.26		37.73		44.68		47.07		53.03		54.81		46.87		40.61		38.70		33.94		41.69
1972	32.39		35.48		39.45		36.27		46.13		49.20		55.55		53.81		45.90		39.55		40.33		28.81		41.91
1973	31.97		35.00		37.03		37.93		42.90		48.53		52.90		48.16		49.13		41.19		36.40		37.74		41.58
1974	30.65		35.61		37.35		40.33		42.29		49.00		52.74		52.13		48.57		38.42		37.43		37.13		41.80
1975	34.68		33.50		35.00		35.20		42.97	a	47.83		52.94		50.42		46.87		43.65		37.10		36.84		41.42
1976	34.00		32.79		34.77		38.37		43.45		45.97	a	52.13	a	51.23	a	47.93		39.35		35.63		31.71		40.61
1977	27.87		33.89		35.74		39.33		41.70	a	47.70		49.32		52.47	a	46.13		36.61		32.87		34.57	a	39.85
1978	34.87		37.61		38.19		40.43		42.77		50.90		54.68		53.55		49.20		40.45		27.73		27.71		41.51
1979	21.77		33.57		37.52		40.67		45.58		47.87		52.97		52.33	a	51.23		46.03		35.13		37.23	a	41.83
1980	27.39		36.24		37.30	a	42.00	a	46.00		49.52	a	54.43	a	49.71		48.20		41.77		40.87		36.10		42.46
1981	33.42		34.29		36.29		40.77		42.63	d	49.13		52.65		54.68		48.97		40.90		38.83		36.32		42.41
1982	31.55		34.32		35.20	a	36.10		43.77	a	51.53		53.20	a	53.21	b	49.45	a	41.21	b	34.64	b	32.70	a	41.41
1983	36.50	c	39.36		40.67	a	38.40		46.30	d	49.67		53.10		53.77		45.17		39.59	b	41.28	a	29.25	c	42.75
1984	32.86	c	35.36	d	39.37	a	38.77		42.48	d	47.87		51.19		50.35		47.25	b	40.55	b	37.21	b	28.70	a	41.00
1985	25.83	a	28.79	i	33.08	e	40.96	c	44.00	b	48.66	a	54.67	a	50.90	a	44.88	e	40.33	d	29.41	c	24.74		39.77	a
1986	34.62	e	36.44	a	40.13	a	39.00	a	45.48	b	53.21	a	50.62	b	55.94		48.46	b	41.85	e	39.26	c	33.73	e	43.23
1987	33.00	d	-----	z	38.48	b	40.36	e	-----	z	-----	z	54.55	b	54.00	b	48.67	c	-----	z	38.92	d	33.37	a	42.67	d
1988	32.30	d	34.56	b	36.13		40.19	d	43.42	e	49.63	c	54.16		51.40	a	46.54	b	46.44	d	39.00	e	33.59	b	42.28
1989	35.29	c	26.46	b	37.28	b	43.50		46.10		51.56	c	53.17	a	53.40	a	48.32	b	42.07	a	39.90	a	33.00	b	42.50
1990	35.73	a	31.75	d	37.67	a	42.40		44.07	a	50.17	a	54.30	a	54.00	a	50.53		40.13		38.19	c	25.61		42.05
1991	28.12	e	38.04	a	33.89	c	38.27		42.81		48.37		52.52		53.71		51.07		40.87		39.90		36.61		42.01
1992	36.85	e	38.72	d	38.76	b	44.50	d	48.25	c	56.63	c	56.50	e	53.19	e	47.29	f	46.25	g	37.52	g	34.00	f	46.67	d
1993	28.66	b	29.61		38.58		41.72	e	50.97	b	50.86	b	52.42		54.57	a	47.40		42.59	b	29.30	c	31.97	a	41.55
1994	36.87	a	31.19	a	36.80	a	40.26	c	46.94		48.21	a	53.55		53.61		50.87		36.73	a	33.50		34.79	c	41.94
1995	35.35		37.56	c	37.17	b	38.63		47.16		50.38	a	57.68	c	50.74		52.04	b	41.63	d	42.38	d	34.26		43.75
1996	34.74		29.69	c	35.23	a	42.70		43.63	a	47.67		56.00		53.33	a	45.70		39.72	b	36.38	a	34.57	a	41.61
1997	32.68	c	32.04	b	37.13		38.97		49.03		49.83		54.45		55.94		51.00		42.29		40.04	b	32.38	b	42.98
1998	36.32		37.43		39.39		39.23		47.10		50.73		57.17	a	54.77		49.43		41.42		41.53		34.26		44.07
1999	36.23		35.65	b	35.32	c	37.04	b	40.85	e	48.96	e	51.42	g	56.50	c	46.56	c	39.65	e	40.85	d	34.31	b	41.08	a
2000	30.89	d	35.73	g	34.63	d	40.50	h	44.30	a	49.53		51.41	b	50.67	a	47.00	c	40.24	b	30.72	a	32.70	d	41.21	b
2001	30.89	d	30.07		36.17	a	36.82	b	43.86	c	47.07	a	50.15	d	53.52	b	49.17	f	39.93	c	38.29	b	33.52	d	40.02	a
2002	33.67	a	32.96	b	33.68	f	39.08	e	42.67	d	51.33		55.23	a	52.18	c	47.96	c	38.96	d	38.38	d	35.62	g	43.24	b
2003	33.72	f	31.37	a	38.64	c	39.27	d	43.50	c	51.20		53.72	b	54.54	c	50.55	a	46.64	c	32.84	e	34.42	e	43.34	a
2004	32.47	a	35.48	b	37.33	d	40.00	a	47.37	a	52.82	b	56.80	a	56.83	b	48.37	c	43.65		34.59	a	34.58		43.36
2005	34.03	b	29.46		37.10	b	40.57		48.68		49.07	a	55.32		52.71		46.21	a	45.80	a	33.50		31.61	c	42.01
2006	38.00		31.77	b	36.53	a	41.44	c	45.79	b	52.34	a	54.67	a	51.53	a	47.07	c	38.57	c	37.48	g	32.67	g	43.77	b
2007	28.48	d	36.52	c	38.14	j	37.80	e	43.84		48.93	c	56.30	a	53.45		47.66	a	40.25	g	34.77	d	34.78	d	42.25	b
2008	29.78	d	33.00	g	34.16	f	35.88	e	46.71	c	-----	z	53.35		55.48		49.00		42.00		41.60		30.19		42.67	c
2009	30.61		30.30	a	34.84		38.23		44.32		52.07		56.35		54.45		49.93		43.16		37.87		28.10		41.69
2010	39.13		37.54	b	38.07	a	39.87		44.23		49.53		52.42		52.74		51.97		42.94		37.50		37.39		43.61
2011	34.13		31.57		38.10		36.53		42.03		49.70		51.97		53.81		51.80		45.23		35.23		30.39		41.71
2012	33.31	e	35.03		35.35		41.50		43.61		49.27		53.97		54.00		47.90		43.52	b	40.10		41.00	y	43.41	a
2013	30.39		36.25		37.45		40.77		47.52		51.93		54.06		56.52		53.43		38.65		36.60		28.65		42.68
2014	32.55		33.43		38.00		40.10		46.77		50.80		56.26		57.06		51.90		48.70	a	37.60		37.32		44.21
2015	35.58		39.04	a	39.35		39.40		47.58		54.00		56.35		55.61		49.07		47.42		34.17		37.84		44.62
2016	36.68		39.76		40.03		43.67		49.10		50.30		55.10		55.10		47.17		47.23		43.37		29.45		44.74
2017	26.19		33.57		38.13		39.23		46.71		51.67		52.48		55.58		51.17		39.32		38.77		29.71		41.88
2018	37.68		31.71		33.13	a	40.67		48.27	a	48.93		55.35		54.03		46.73		42.29		36.13		34.03		42.41
2019	32.45		29.39		31.39		41.37		46.42		50.00		54.87		55.26		51.55	a	36.55		34.43		35.19		41.57
2020	38.77		32.00		32.74		38.13		43.36	t	50.93	a	54.26		52.77		53.23		43.13		35.97		34.19		42.38	a
2021	35.37	a	33.14		32.52		36.77		44.61		52.97		54.81		55.94		48.73		42.61		39.90		33.13		42.54
2022	32.23		31.36		36.94		35.60		42.06		50.23		55.68		56.84		52.10		46.10		31.33		32.19		41.89
2023	34.45		29.71		33.13		39.45	a	48.23		48.77		55.06		56.68		50.17	g	44.26		36.73		41.08	r	42.65	b
2024	36.81		38.14		38.74		-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	-----	z	37.90	i
Period of Record Statistics
MEAN	32.06		33.71		35.86		38.88		43.89		48.87		52.10		51.98		47.81		41.62		36.76		33.53		41.55
S.D.	4.28		3.27		2.37		2.01		2.35		2.25		2.47		2.53		2.31		2.68		3.38		3.19		1.28
SKEW	-1.18		-0.27		-0.12		0.07		0.33		0.54		0.02		-0.03		0.18		0.18		-0.48		-0.30		0.00
MAX	39.52		41.79		40.67		44.50		50.97		56.63		57.68		57.06		53.43		48.70		43.67		42.03		44.74
MIN	16.94		22.93		30.94		33.83		37.94		43.33		46.60		46.29		42.18		36.35		27.73		24.74		37.95
YRS	128		124		126		127		125		115		115		113		113		123		124		120		97