FLAGSTAFF 4 SW, AZ

Average of Minimum Temperature (Degrees Fahrenheit)

(023009)

File last updated on December 4, 2025
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
1984	-----	z	-----	z	-----	z	-----	z	27.19		32.00	a	45.94		45.13		37.90	a	21.57	c	10.41	h	11.58	e	31.61	e
1985	7.43	h	5.32	i	20.58	g	25.93		29.03		33.77		44.77		41.23	a	31.97		28.68		12.72	a	9.61		28.64	c
1986	16.13		16.56	a	19.45		25.21	a	27.10		37.60		44.61		45.58		34.52	a	21.52		17.22	c	10.52		26.33
1987	0.93	b	12.88	d	11.92	e	24.43	b	28.81		33.13		39.07	a	42.32		32.80		-----	z	18.77		8.37	a	23.04	a
1988	5.73	a	10.79	a	17.16		23.25	b	25.77		37.07		44.03	a	44.10	a	30.60		27.68		16.07		6.42		24.06
1989	0.94		11.43		19.71		24.20		30.16		33.47		44.30	a	41.17	b	33.00		24.90		14.13		4.77		23.52
1990	3.35		6.82		17.84		27.97		27.94		37.20		46.29		39.32		39.20		23.35		14.90		2.42		23.88
1991	12.23		15.57		15.87		21.27		25.71		31.33		41.70	a	42.60	a	35.63		23.33	a	16.07		11.48		24.40
1992	1.53	a	16.48		20.48		24.73		32.32		32.83		40.23		43.29		32.73		24.52		11.00		2.03	a	23.52
1993	13.71		14.46		18.16		22.30		27.26		32.17		39.58		43.50	a	33.00		26.35		14.70		8.90	a	24.51
1994	10.90	a	7.18		22.74		25.13		30.90		39.20		42.23		47.84		38.30		23.19		14.69	a	16.00		26.53
1995	12.55		19.79		23.32		23.47		29.90		32.47		41.58		47.48		37.37		23.81		20.71	b	11.47	a	26.99
1996	10.87		20.83		17.58		21.43		29.32		34.73		49.13		44.61		37.33		24.39	c	19.87		17.23	a	27.28
1997	13.18	c	9.88	b	15.60	a	22.93		30.52		32.67		39.80	a	46.62	b	42.70		27.10	a	19.63	c	9.77	a	25.87
1998	15.81	d	9.80	c	17.23	a	21.47		-----	z	32.04	b	46.19		45.00		39.63		25.23		18.79	a	12.93	a	25.83	a
1999	13.77	a	16.50		18.77	a	21.31	a	27.68		35.40		46.29		40.07	b	33.87		20.93	b	13.66	a	4.33	a	24.38
2000	10.19		17.31		17.40	a	22.30	c	28.48		35.14	b	44.10		46.70	a	38.17	a	30.19		12.60		16.29		26.57
2001	7.89	d	11.14		20.32		28.21	a	31.90		37.67		45.81		45.58		35.77		29.42		20.23		8.03	a	26.83
2002	13.81		11.19	a	14.90	a	26.50		26.32		34.77		49.84		42.77	a	38.27		27.52		18.52	c	9.67	a	26.17
2003	18.52	b	18.16	c	19.55	b	22.41	a	32.00	a	33.93		47.58		48.16		39.20		30.35		20.72	a	13.66	b	28.69
2004	13.10	b	11.10		21.81		27.62	a	29.52		34.30		42.74		43.94		36.23		28.19		21.52	a	14.83	a	27.08
2005	17.03	b	21.57		23.52	b	26.90		33.61		35.60		45.74		46.81		38.07	a	28.90		19.45	a	12.10	b	29.11
2006	9.79	c	12.43		18.61		25.43		31.87		40.13		51.26		47.94		36.70		27.84		17.89	b	10.77	e	27.55
2007	7.26		15.08	d	22.13		23.07	c	30.40	a	35.79	f	48.52	f	48.39		39.30		26.81		18.37		9.84		24.06	b
2008	7.45	b	12.24		19.61		23.48	a	29.06		36.80		49.76	b	48.77		36.63		24.52		21.26	c	13.45		26.92
2009	14.13		11.18		21.19		23.67		-----	z	37.20		46.84		41.77		38.39	b	22.42		17.67		5.61		25.46	a
2010	9.65		13.61		16.32		24.77		27.54	c	36.20		48.58		48.19		35.43		31.52		16.80		20.06		27.39
2011	7.48		12.11		22.35		24.93	a	28.26		34.27		47.87	a	47.74		39.78	c	27.40	a	21.33		9.52		26.92
2012	15.52		16.52		16.75	c	25.73		29.74		36.23		49.26		48.97		39.83	f	25.79	q	19.10		9.45		26.73	b
2013	3.48		11.67	a	21.68		24.77		28.81		39.33		51.00		47.70	a	40.33		23.87	a	12.43		1.86	i	27.73	a
2014	-----	z	16.43	u	-----	z	18.16	e	31.83	b	36.43		48.55		45.77		40.90		29.52		20.87		18.94		32.33	c
2015	17.39		21.39		23.00		24.77		31.06		40.83		45.97		47.16		40.90		34.61		19.70		12.19		29.91
2016	10.58		15.28		20.55		25.72	a	30.21	b	40.10		47.00		45.77		39.07	a	30.81		22.00		18.16		28.77
2017	17.17	a	23.61		22.68		25.63		30.52		39.53		50.23		46.58		36.80		26.35		24.83	a	13.55		29.79
2018	15.30	a	15.86		20.71		27.03		29.45		38.50		49.74		47.61		36.97		33.26	h	13.89	k	13.67	a	29.48	b
2019	17.00	b	11.93		23.97		27.03		29.03		35.43		44.77		45.35		41.30		22.40	a	17.70		14.32	i	28.72	a
2020	12.29		18.86		22.71		24.86	b	29.75	c	-----	z	-----	z	46.13		33.73		24.55		18.30		8.87		24.01	b
2021	10.43	a	12.75		18.84		24.32	b	26.90		39.73		51.65		46.71	c	40.87		25.71		18.33		17.58		27.82
2022	12.26		12.54		20.10		23.73		30.94		39.93		50.45		49.48		42.13		29.45		15.53		16.39		28.58
2023	9.00	a	7.61		18.29		24.21	a	29.90		33.50		46.23		48.70	a	37.43		26.55		20.43		15.00		26.40
2024	15.06		14.48	b	23.06		22.50		23.84		42.07		47.10		49.00		36.67		29.03		15.30		12.29		27.53
2025	7.71		17.43		19.23		20.77		28.90		38.07		43.48		45.71		39.40		29.90		-----	z	-----	z	29.06	b
Period of Record Statistics
MEAN	11.05		14.26		19.62		24.23		29.24		36.07		46.03		45.65		37.29		26.52		17.79		11.48		26.67
S.D.	4.77		4.06		2.76		2.15		2.05		2.87		3.41		2.62		2.94		3.17		3.11		4.42		1.82
SKEW	-0.57		0.32		-0.48		-0.37		-0.32		0.21		-0.31		-0.66		-0.34		0.22		-0.24		-0.16		-0.17
MAX	18.52		23.61		23.97		28.21		33.61		42.07		51.65		49.48		42.70		34.61		24.83		20.06		29.91
MIN	0.93		6.82		11.92		18.16		23.84		31.33		39.07		39.32		30.60		20.93		11.00		2.03		23.52
YRS	39		39		39		41		40		40		40		42		41		39		39		39		29