FOREST GROVE, OR

Minimum of Minimum Temperature (Degrees Fahrenheit)

(352997)

File last updated on November 17, 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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
189312.00 22.00 25.00 29.00 34.00 35.00 43.00 -----z34.00u23.00 23.00 24.00 -----z
189419.00 11.00 24.00 28.00 28.00a42.00k-----z-----z-----z30.00b25.00 23.00a-----z
189521.00 27.00d19.00 27.00 29.00 -----z-----z-----z-----z25.00 22.00 27.00 -----z
189622.00a25.00 19.00 29.00 35.00 37.00 -----z-----z30.00a30.00 7.00 26.00 -----z
189719.00 26.00 16.00 32.00 34.00 37.00 -----z-----z30.00a27.00 28.00 23.00 -----z
189814.00 29.00 22.00 25.00 32.00 -----z-----z-----z-----z32.00 25.00 15.00 -----z
189920.00 -1.00 24.00a29.00 30.00 -----z-----z-----z-----z25.00b33.00 27.00 -----z
190023.00 19.00 29.00 26.00 34.00 40.00m-----z-----z-----z32.00 11.00 24.00a-----z
190121.00b21.00c23.00b29.00 35.00 -----z-----z-----z-----z38.00 29.00 23.00 -----z
19027.00 26.00b28.00a28.00 31.00d-----z-----z-----z-----z34.00 26.00 21.00 -----z
190322.00 19.00 22.00 23.00 32.00a38.00 39.00 39.00 30.00 24.00 28.00 24.00 19.00a
190423.00 25.00 27.00 30.00 32.00 37.00 35.00 38.00 30.00 33.00a32.00 24.00c23.00d
190520.00b11.00 25.00 29.00 33.00 40.00 43.00 35.00 37.00 24.00 23.00 22.00a11.00c
190627.00 23.00 19.00 28.00 31.00 38.00 42.00 41.00b29.00b25.00 21.00 22.00 19.00d
19074.00d24.00 23.00 28.00 31.00 -----z-----z-----z-----z-----z-----z-----z-----z
190826.00 18.00 26.00 27.00 31.00 -----z-----z38.00g27.00 28.00b26.00 22.00 -----z
1909-11.00 31.00 30.00 28.00 29.00 35.00 40.00a33.00p33.00m30.00 20.00 17.00 -----z
191012.00c20.00 26.00 26.00 36.00 -----z-----z-----z-----z31.00 28.00 26.00k-----z
19113.00a22.00 23.00 24.00 31.00 -----z40.00 42.00 33.00 25.00 20.00 23.00 -----z
191216.00 25.00 23.00 29.00 -----z-----z-----z-----z-----z-----z-----z-----z-----z
191318.00e21.00r22.00a27.00 36.00 42.00c43.00 -----z-----z-----z-----z-----z-----z
1914-----z-----z32.00h-----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-----z34.00 42.00 44.00 36.00a27.00 19.00 9.00 -----z
191716.00 20.00a23.00 31.00 30.00 37.00 42.00 42.00 42.00 23.00 30.00 29.00 16.00a
191821.00 23.00 27.00 27.00 32.00 36.00 37.00 42.00 37.00 33.00 29.00 20.00 20.00
191918.00 27.00 30.00 30.00 32.00 36.00 39.00 42.00 33.00 22.00 19.00 -3.00c-3.00c
192021.00 23.00 25.00 30.00 30.00 36.00 41.00 36.00 40.00 29.00 24.00 30.00 21.00
192123.00 27.00 29.00 28.00a33.00 44.00 38.00 41.00 32.00 30.00 31.00 17.00 17.00a
192212.00 16.00 27.00 29.00 28.00 37.00 40.00 44.00 40.00 29.00 26.00 7.00 7.00
192317.00 15.00 23.00 32.00 31.00 38.00 45.00 43.00 36.00 29.00 30.00 17.00 15.00
19244.00 28.00 27.00 26.00 32.00 37.00 39.00 37.00 34.00 29.00 25.00 3.00 3.00
192526.00 30.00 28.00 31.00 35.00 39.00 42.00 40.00 38.00 30.00 24.00 25.00 24.00
192621.00 28.00 29.00 32.00 33.00 36.00 40.00 42.00 30.00 30.00 30.00 13.00 13.00
19273.00 23.00 28.00 26.00 35.00 38.00 42.00 40.00 36.00 27.00 28.00 14.00a3.00a
192814.00 27.00 27.00 29.00 33.00 39.00a41.00 41.00 32.00 27.00 26.00 19.00 14.00a
192911.00 4.00 27.00 28.00 33.00 35.00 41.00 39.00 32.00 27.00 22.00 27.00 4.00
1930-8.00 25.00 25.00 32.00 29.00 35.00 40.00 43.00 33.00 29.00 23.00 19.00 -8.00
193125.00 27.00 28.00a28.00 32.00 40.00 42.00 40.00 36.00 32.00 19.00 19.00 19.00a
193222.00 13.00 27.00 29.00 33.00 35.00 37.00 41.00a36.00 30.00 28.00 5.00 5.00a
193320.00 9.00 29.00 27.00 35.00 38.00 42.00 43.00 37.00 30.00 25.00 29.00 9.00
193429.00 28.00 30.00 30.00 34.00 37.00 43.00 44.00a31.00 33.00 31.00 24.00 24.00a
193512.00 24.00 27.00 26.00 31.00 34.00 38.00 39.00 41.00 24.00 14.00 19.00 12.00
193620.00a14.00 25.00 27.00 35.00 42.00 45.00 41.00 34.00a26.00 16.00 24.00 14.00b
1937-0.00 19.00 27.00 30.00 33.00 40.00 42.00 38.00 34.00 35.00 29.00 24.00 -0.00
193824.00 26.00 26.00 28.00 31.00 37.00 42.00 38.00 44.00 30.00 25.00 21.00a21.00a
193927.00 22.00 27.00 30.00 34.00 37.00 41.00 39.00 40.00a30.00 30.00 24.00a22.00b
194025.00 30.00 31.00 33.00a34.00 37.00 41.00 42.00 36.00 32.00 24.00 18.00 18.00a
194121.00 27.00 25.00 30.00 34.00 39.00 44.00 44.00 38.00 36.00 25.00 26.00 21.00
194213.00 24.00 28.00 30.00 32.00 38.00 43.00 41.00 40.00 28.00 28.00 29.00 13.00
19435.00 26.00 23.00 30.00 33.00 39.00 41.00 42.00 39.00 31.00 27.00 22.00 5.00
194422.00 25.00 25.00 32.00 33.00 38.00 41.00 42.00 39.00 37.00 25.00 20.00 20.00
194521.00 26.00 26.00 28.00 39.00 37.00 40.00 40.00 34.00 28.00 27.00 20.00 20.00
194624.00 28.00 29.00 28.00 36.00 41.00 43.00 42.00 33.00 27.00 24.00 19.00a19.00a
194714.00 22.00 30.00 30.00 36.00 38.00 44.00 38.00 34.00 37.00 26.00 28.00 14.00
194822.00 18.00 26.00 29.00 32.00 42.00 39.00 42.00 37.00 30.00 26.00 16.00 16.00
19491.00 18.00 26.00 28.00 31.00 37.00 40.00 40.00 34.00 24.00 28.00c21.00 1.00c
19504.00a-12.00a27.00 29.00 33.00 37.00 41.00 42.00 30.00 29.00 25.00 31.00 -12.00b
195112.00 23.00 21.00 26.00 34.00 41.00 43.00a40.00 34.00 29.00 27.00 20.00 12.00a
195215.00 27.00a26.00 28.00 29.00a41.00a42.00 40.00 35.00 31.00 13.00 22.00 13.00c
195327.00 25.00 27.00 26.00 33.00 38.00 42.00 42.00 35.00a29.00 26.00 28.00 25.00a
19545.00 25.00 23.00 28.00 28.00 36.00 38.00 39.00 33.00 26.00 28.00 24.00b5.00b
195524.00 22.00a22.00 28.00 31.00 36.00 34.00 37.00 33.00 32.00 7.00 19.00 7.00a
19564.00 2.00 16.00 28.00 33.00 38.00 40.00 42.00 35.00 30.00 22.00 17.00 2.00
19575.00 24.00 29.00 31.00a40.00 39.00a40.00 36.00 34.00 31.00a23.00 29.00 5.00c
195825.00 28.00 26.00 30.00 31.00 40.00 43.00 42.00 33.00 31.00 19.00 26.00 19.00
195914.00 24.00 22.00 32.00 34.00 39.00 42.00 42.00 40.00 29.00 21.00 22.00a14.00a
196020.00 17.00 19.00 31.00 35.00 40.00 40.00 42.00 37.00 31.00 28.00 22.00 17.00
196123.00 31.00 31.00 32.00 37.00 39.00 45.00 44.00 33.00 28.00 20.00 18.00 18.00
19627.00 15.00 25.00 32.00 32.00 37.00 39.00 40.00 41.00 35.00 30.00 21.00 7.00
196310.00 32.00 27.00 29.00 33.00 40.00 44.00 45.00 42.00 31.00 24.00 22.00 10.00
196429.00 23.00 29.00 25.00 28.00 39.00 43.00 37.00 38.00 29.00 22.00 7.00 7.00
196527.00 27.00 25.00 25.00 30.00 34.00 44.00 40.00 30.00 34.00 27.00 17.00 17.00
196623.00 25.00 27.00 29.00 33.00 38.00 45.00 42.00 44.00 30.00 27.00 29.00 23.00
196731.00 25.00 25.00 30.00 35.00 45.00 46.00 47.00 38.00 33.00 28.00 15.00 15.00
196822.00 23.00 26.00 26.00 34.00 37.00 44.00 43.00 41.00 30.00 28.00 8.00 8.00
196910.00 25.00 24.00 29.00 33.00a42.00 43.00 41.00 39.00 27.00 21.00 20.00 10.00a
197022.00 28.00 27.00 28.00 32.00 39.00 41.00 41.00 33.00 26.00 26.00 25.00 22.00
197120.00 20.00 13.00 28.00 36.00 38.00 42.00 43.00 34.00 23.00 24.00 23.00 13.00
197212.00 17.00 26.00 27.00 33.00 42.00 45.00 45.00 32.00 24.00 28.00 -4.00 -4.00
197318.00 24.00 29.00 31.00 34.00 37.00 42.00 39.00 38.00 32.00 23.00 28.00 18.00
19747.00 27.00 24.00 32.00 31.00 39.00 44.00 43.00 36.00 30.00 29.00 24.00 7.00
197522.00 24.00 26.00 27.00 32.00a39.00 43.00 43.00 40.00 34.00 23.00 24.00 22.00a
197624.00 17.00 22.00 31.00 34.00 34.00a41.00a42.00a38.00 27.00 22.00 22.00 17.00c
197714.00 24.00 28.00 32.00 33.00a35.00 39.00 44.00a35.00 32.00 18.00 22.00a14.00c
197827.00 25.00 28.00 30.00 31.00 44.00 45.00 46.00 39.00 27.00 16.00 10.00 10.00
1979-1.00 7.00 32.00 32.00 37.00 38.00 42.00 45.00a40.00 36.00 25.00 27.00a-1.00b
19809.00 24.00 30.00a31.00a37.00 42.00a47.00a41.00 40.00 29.00 27.00 23.00 9.00d
198126.00 24.00 27.00 30.00 35.00d41.00 40.00 44.00 43.00 33.00 25.00 28.00 24.00d
19829.00 16.00 28.00a29.00 33.00a40.00 44.00a43.00b37.00a31.00b23.00b20.00a9.00k
198324.00c27.00 32.00a28.00 37.00d42.00 43.00 43.00 35.00 31.00b26.00a8.00c8.00n
198417.00c27.00d28.00a29.00 33.00d40.00 42.00 39.00 36.00b30.00b25.00b14.00a14.00s
198520.00a12.00i26.00e32.00c30.00b40.00a47.00a42.00a34.00e26.00d6.00c18.00 -----z
198629.00e24.00a32.00a30.00a34.00b43.00a43.00b44.00 37.00b35.00e27.00c24.00e-----z
198722.00d-----z29.00b29.00e-----z-----z46.00b45.00b37.00c-----z25.00d24.00a-----z
198817.00d19.00b26.00 28.00d33.00e38.00c45.00 45.00a34.00b33.00d28.00e21.00b-----z
198925.00c5.00b25.00b33.00 38.00 42.00c42.00a45.00a38.00b29.00a29.00a25.00b5.00r
199025.00a16.00d28.00a34.00 33.00a42.00a45.00a44.00a40.00 32.00 30.00c3.00 3.00m
199118.00e31.00a30.00c30.00 32.00 36.00 44.00 42.00 41.00 29.00 29.00 27.00 18.00i
199223.00e26.00d29.00b29.00d33.00c46.00c48.00e46.00e38.00f29.00g27.00g24.00f-----z
19938.00b19.00 29.00 35.00e38.00b42.00b43.00 42.00a35.00 34.00b13.00c21.00a8.00r
199423.00a18.00a29.00a33.00c36.00 40.00a43.00 47.00 42.00 30.00a25.00 20.00c18.00k
199525.00 12.00c26.00b31.00 40.00 41.00a44.00c40.00 44.00b31.00d26.00d20.00 12.00s
199615.00 7.00c22.00a32.00 32.00a40.00 43.00 44.00a38.00 28.00b22.00a20.00a7.00j
199718.00c23.00b30.00 28.00 35.00 43.00 47.00 51.00 44.00 31.00 30.00b27.00b18.00i
199825.00 28.00 28.00 32.00 40.00 46.00 52.00a46.00 39.00 32.00 35.00 8.00 8.00a
199927.00 30.00b26.00c29.00b35.00e32.00e41.00g45.00c33.00c33.00e30.00d22.00b-----z
200023.00d26.00g28.00d31.00h32.00a43.00 41.00b42.00a34.00c33.00b19.00a24.00d-----z
200123.00d23.00 28.00a27.00b35.00c39.00a39.00d45.00b38.00f33.00c28.00b25.00d-----z
200225.00a25.00b27.00f33.00e33.00d41.00 43.00a46.00c35.00c20.00d26.00d24.00g-----z
200322.00f12.00a29.00c31.00d30.00c42.00 45.00b46.00c40.00a25.00c21.00e13.00e-----z
200411.00a26.00b31.00d31.00a41.00a42.00b50.00a51.00b40.00c36.00 25.00a28.00 11.00r
200521.00b23.00 30.00b32.00 41.00 41.00a48.00 45.00 35.00a34.00a25.00 16.00c16.00j
200629.00 19.00b27.00a29.00c33.00b44.00a46.00a46.00a38.00c22.00c24.00g22.00g-----z
200716.00d21.00c28.00j27.00e34.00 40.00c49.00a46.00 37.00a28.00g23.00d26.00d-----z
200818.00d26.00g26.00f25.00e33.00c-----z44.00 42.00 38.00 32.00 28.00 10.00 -----z
200921.00 24.00a25.00 26.00 36.00 44.00 50.00 45.00 41.00 29.00 30.00 8.00 8.00a
201032.00 24.00b33.00a29.00 37.00 42.00 45.00 43.00 43.00 33.00 14.00 21.00 14.00c
201119.00 16.00 28.00 29.00 33.00 37.00 44.00 48.00 40.00 30.00 24.00 20.00 16.00
201222.00e27.00 24.00 28.00 33.00 38.00 43.00 42.00 42.00 35.00b27.00 35.00y-----z
201320.00 29.00 28.00 34.00 33.00 43.00 47.00 49.00 39.00 29.00 20.00 8.00 8.00
201420.00 18.00 29.00 33.00 36.00 44.00 50.00 46.00 45.00 43.00a18.00 19.00 18.00a
201520.00 28.00a26.00 31.00 39.00 45.00 48.00 48.00 40.00 39.00 18.00 27.00 18.00a
201620.00 30.00 30.00 34.00 41.00 42.00 48.00 48.00 39.00 35.00 34.00 18.00 18.00
201710.00 27.00 29.00 33.00 37.00 42.00 47.00 47.00 42.00 31.00 31.00 21.00 10.00
201826.00 19.00 26.00a29.00 39.00a39.00 44.00 46.00 41.00 35.00 27.00 22.00 19.00b
201924.00 20.00 19.00 32.00 36.00 43.00 47.00 48.00 40.00a24.00 19.00 19.00 19.00a
202028.00 26.00 26.00 29.00 36.00t45.00a48.00 46.00 46.00 26.00 22.00 25.00 22.00u
202126.00a23.00 26.00 29.00 35.00 42.00 49.00 42.00 40.00 32.00 28.00 24.00 23.00a
202221.00 20.00 25.00 29.00 32.00 43.00 48.00 50.00 43.00 39.00 21.00 19.00 19.00
202318.00 12.00 25.00 31.00a40.00 40.00 51.00 46.00 44.00g27.00 22.00 33.00r-----z
202410.00 28.00 29.00 34.00 36.00 41.00 49.00 45.00 41.00 34.00 29.00 23.00 10.00
202522.00 19.00 30.00 34.00 36.00 41.00 48.00 52.00 44.00 35.00 -----z-----z-----z
Period of Record Statistics
MEAN17.95 21.79 26.20 29.36 33.64 39.33 43.10 42.77 36.99 30.09 24.40 20.23 12.92
S.D.8.13 7.03 3.41 2.36 2.87 2.93 3.36 3.27 4.04 3.95 5.26 6.78 7.87
SKEW-1.01 -1.73 -1.02 0.02 0.52 0.10 0.24 0.27 -0.06 0.13 -1.15 -1.27 -0.78
MAX32.00 32.00 33.00 35.00 41.00 46.00 52.00 52.00 46.00 43.00 35.00 31.00 25.00
MIN-11.00 -12.00 13.00 23.00 28.00 32.00 34.00 35.00 27.00 20.00 6.00 -4.00 -12.00
YRS129 125 127 129 127 117 117 115 115 125 125 121 83