RICHLAND, OR

Average of Minimum Temperature (Degrees Fahrenheit)

(357160)

File last updated on April 16, 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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
189317.45 21.57 28.84 -----z40.17a46.00 53.13a54.94 44.90 36.93q28.43 29.45 36.49b
189427.29c21.44a32.26 36.50 43.84 45.70 56.26 54.94 -----z-----z-----z-----z39.78d
1895-----z-----z-----z34.27 40.42 46.67 51.19 52.93b38.93 39.10 30.67 23.00b39.69c
189624.53a24.69 29.74 34.43 40.23 49.70 57.06 54.10 42.87 36.84 28.11b-----z38.39a
1897-----z-----z23.97b-----z-----z34.71b44.29 47.81 39.53 30.62b26.72a23.68 33.92d
189811.74 24.29 23.35 32.20 40.92e46.57 47.39 47.90 36.83g-----z-----z-----z34.30d
189924.23 16.64 28.32 30.50 34.87 42.40 46.29 43.10 38.50 28.68 27.10 12.87 31.12
190020.13 17.36 24.81 26.93 36.16 43.77 43.60a41.71 35.70 26.68f21.07 24.87 30.55a
190119.06 21.07 25.70a28.27 40.16 40.87 49.16 51.16 38.03 34.03 30.40y-----z34.75b
1902-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1903-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1904-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1905-----z-----z-----z-----z-----z-----z-----z-----z-----z24.70h22.46b20.52b21.49j
190617.78d26.96 22.48 33.66a38.55 38.50 54.00b48.30a38.93 -----z24.48a29.84 33.95a
190718.45 29.39e31.81 31.38v42.61 48.63 51.79c47.58 42.33 38.81 26.37 24.74 36.59a
190824.75g32.42e28.26 37.08f40.10 48.54d52.43c50.00g43.27h34.23 30.40j20.06 36.58e
190923.61 29.32 27.08g30.03 37.09i47.24e47.75w49.66b44.63 33.35 32.67 16.90a34.16c
191014.10a17.46 32.45 36.93 41.45 46.33 53.23 44.77 43.00 33.10 28.74g27.41b35.48a
191122.33a19.21 26.58 30.73 37.00 49.20 51.39h45.52b39.60 30.35 25.77 18.97a31.39a
191216.50a27.31 25.77 34.47 39.87a48.24a49.87 48.93a37.03 30.03a27.48e19.47a33.75
191317.90b-----z-----z-----z-----z-----z-----z-----z37.53o32.32 33.21a17.90 25.33h
1914-----z24.85b30.41b36.74c42.41d45.07a-----z49.25c-----z-----z-----z10.67g38.12f
191517.33a30.82 30.68c37.07 40.06 43.81d51.74 55.79b40.07a30.77 26.33 20.84 35.44
191612.38b25.59 31.61 35.63 36.23 44.03 51.04c49.16 41.27 29.39 23.04c11.96h34.49a
191710.55 17.54 20.29 33.90 38.87 43.43 54.06 50.61 45.97 33.03 27.87 31.70a33.99
191825.53a25.32 31.65 31.07 37.13 53.40 52.16 47.68 44.87 37.26 23.77 19.81 35.80
191916.56f27.11 30.77 33.43 40.84 47.07 51.03 52.13 42.03a29.19 24.69a11.03 35.39a
192014.52 24.48 31.27a34.18b38.39 44.79a54.80a50.06 41.63 33.16 26.57 27.45 35.11
1921-----z-----z30.23a32.63 42.06 50.60 51.52 50.90a38.67 35.03 30.40 23.77 38.58b
192210.33a20.21 26.58 -----z-----z50.44e55.07a53.81 42.87 36.07a22.20 20.32 33.79b
1923-----z-----z-----z-----z38.33d-----z-----z-----z-----z-----z-----z-----z38.33k
1924-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1925-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1926-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1927-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1928-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1929-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1930-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1931-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1932-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1933-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1934-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1935-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1936-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1937-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1938-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1939-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1940-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1941-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1942-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1943-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1944-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z29.52a20.71 25.11j
194524.52 27.68 28.77 33.04g41.10 44.30 50.70a46.80a41.57 32.64c27.34a20.58 35.09a
194618.87 21.63a29.77a34.10 39.71 45.80 52.10 47.71 38.50 27.67a27.80 24.87 34.04
194713.67a27.64 29.45 32.10 45.72b44.60 51.74 46.81 41.17 38.39 28.50 22.48 35.19
194818.97 22.97 26.42 34.03 41.72b48.47 49.29 46.94 42.23 36.30k28.47 12.61 33.83a
1949-4.81 -----z31.55 29.73 43.26 44.23 45.84 50.81 42.37 28.53a29.50 20.94 32.90a
1950-----z24.96 29.77a34.00 35.13 43.31d46.84 47.84 40.57 37.35 29.87 27.97 36.15a
1951-----z-----z25.52 31.67 42.97 45.03 52.58 50.32 41.60 30.39 27.33 19.10a36.65b
195216.81 21.55 24.42 31.33 43.83a46.60 57.68 51.60a42.90 32.81 16.70 27.19 34.45
195334.20k26.68 33.84 -----z39.30h43.93 53.74 51.68 38.17 22.94 24.52g11.97a35.37d
195417.07b25.74a16.00v31.50 36.03 -----z57.80a46.97 38.07 28.26 22.42d18.47a32.23b
195517.13 14.25 21.20a31.76a39.93a42.43 51.58 47.29 36.40 27.61 24.59c27.74 31.83
195625.33a18.90 28.16 30.26g43.55 -----z55.68 49.00 41.89b35.32 22.08e20.23a34.01b
19575.81 23.81a30.32 -----z41.58 44.83 48.84 47.74 42.33 28.30a15.26k-----z34.84c
1958-----z31.00 27.17a32.60 43.97 50.90 55.58 53.19 39.63 36.10 29.04e-----z39.92b
195926.14b27.07 26.74 31.37 33.94 47.67f49.48 49.46e42.83 36.42 20.97 18.32 32.98a
196015.14j24.21 34.97 30.97 34.04e44.07 57.94 48.48 41.43 32.10 28.03 20.47a36.06a
196123.46c29.31b28.74 32.57 38.48 50.86b53.34b58.43a38.93 32.97 22.18m25.32 37.49a
196213.35 22.26a28.94 38.87 42.00 46.63 51.35 50.10 40.80 35.48 28.67i25.90 35.97a
196310.23a28.52a27.94 34.14h43.03 47.40 53.23 53.87 50.20 41.06 31.21f22.04d37.75b
196422.81 19.03 31.16 27.48a37.00 45.60 52.35 50.00 38.93 34.97 25.47 26.00a34.23
196528.03a26.29 25.26 37.33 41.87a48.63 53.94 54.23 40.87 32.26 28.10a22.29 36.59
196627.55 25.61 34.00a32.83 36.39 49.83 52.97 56.35 49.97 32.04g31.17 26.57a38.48a
196726.67a25.61 26.39 27.26k38.00 49.75f55.90a56.23 46.40 34.13a28.43 18.55 35.63b
196821.06 33.14 33.32 30.93 38.23 49.44e54.48f52.06 44.10 32.39 31.30 22.90 35.35a
196924.03 24.37a27.19 34.37 43.65 49.70 50.94 50.07d45.23d29.26 22.90 25.23 35.58
197025.48 26.46 30.03 33.73 40.26 52.13 55.55 52.61 37.07a29.35 28.87 22.19 36.15
197124.94 26.82 26.48 31.37 41.13 46.68e54.65 56.16 35.50 31.26 26.67 20.42 35.17
197222.81 22.34 30.58 29.90 41.48 48.87 51.13 51.81 39.60 33.48 29.20 13.29g36.47a
197324.68 29.32 31.35 33.62a40.19 47.77 51.00 52.52 44.03 32.23 30.30 26.90 36.99
197415.94 26.14 28.23 35.57 37.84 51.10 51.77 47.52 40.63 31.58 26.73 21.32 34.53
197516.90 23.64 26.16 31.47 40.13 46.20 56.00 49.97a41.50 38.63a24.27 24.13a34.92
197622.81 23.45 25.84 31.43 39.81 45.97 54.94 50.06 45.87 33.65 25.83 15.37a34.58
197711.00n-----z-----z34.37 39.81 52.77 52.74 53.39 46.17a35.58 27.03 29.16 41.22c
197827.50a31.04a34.68 35.80 40.61 45.10 54.20a48.55 43.10 31.19 24.53 14.94 35.94
19790.68 23.36 30.90a35.83 42.81 48.37 54.06 54.61 45.07 39.35 21.27 26.52 35.24
198022.24b29.93 29.42 34.83 43.29 45.00 54.16 -----z-----z-----z-----z-----z36.98e
1981-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1982-----z-----z28.10 30.67 40.06 48.53 51.43a50.46e45.76a35.28b-----z21.52 39.09c
198328.54e28.93a37.06 34.81d46.79c48.52a36.64c60.95k39.97 37.93a31.30c19.15d35.42a
198415.40f18.39f34.50a46.59c55.22m62.40y70.82n73.33y48.45h37.77a30.32b-----z37.30h
1985-----z20.79 30.63a44.74g54.73i-----z-----z78.00w60.33r33.89m-----z-----z25.71j
1986-----z-----z-----z-----z-----z-----z-----z52.84 40.13 31.50c27.63 20.21b34.46g
198716.68 24.64 28.90a35.89b43.58 49.47 51.71 47.39 39.50b30.10 27.22c23.39 34.87
198817.58 22.83 26.50a34.00a39.26 51.00 52.57a47.23 38.76a38.65 30.03 16.13 34.54
198910.68 4.78a29.31b35.30 39.06 48.97 53.10 50.97a40.87 34.33a26.83 20.13 32.86
199025.90a21.93a28.13 37.27 40.10 46.23 53.68 53.80a46.17 31.77 24.60 10.29 34.99
199113.19 26.86 28.33a33.20 36.97a45.17 52.87 53.00a40.64b31.69b27.26c22.28b34.29
199222.97 30.30b31.97a36.45a41.59b50.97 51.77 49.67a40.23 35.00a26.90a19.21b36.42
199313.48 18.79 29.73a32.90 45.27a46.50 47.23 51.25k-----z31.26l16.10a23.39 30.38c
199425.67a21.14 26.83a35.83 43.90 47.69a53.69b52.55 43.20 32.97b23.27 19.56d35.52
199525.43c28.04a30.50a31.89b41.14b47.41c54.52 48.32 43.38a30.08e29.96c25.00c36.31
199624.11c23.19b28.42e34.00e40.30a45.72a53.70a51.19 40.60 32.36c26.24a25.89d35.48
199723.50c25.18 28.04e-----z-----z47.63 50.67a-----z-----z31.90b26.93 -----z33.41e
199825.26d28.29 29.60a33.68b42.30a44.93 56.42 -----z-----z-----z-----z-----z37.21e
199926.52b24.21 27.03a29.96d38.57a-----z50.16 49.10 41.37 -----z27.00a-----z34.88c
200024.97b29.14a26.88e34.00t39.17h48.70 64.13 -----z42.18b30.15d22.90a23.31b34.71c
200116.52b-----z28.48 31.93 46.52f63.21b54.81 57.21b-----z30.81 30.04c24.20a37.47c
200218.75c25.32 -----z-----z47.83b44.97 -----z-----z-----z27.03 22.66a26.97a30.50e
200326.47a25.50 29.70a32.37 -----z52.57 61.13 52.84 42.27 35.94 21.48c26.19d36.95a
200419.11c21.85i30.23 33.32b42.35 48.74c55.93a54.63a43.68b36.16 27.14a24.72b37.82a
200523.29 21.89 28.97b32.81c43.31b47.00 53.63a51.57a40.34a33.17g25.59a18.78d35.20a
200626.52d22.15b27.30h34.65d39.86c49.11c59.73a48.68 41.71b30.58 30.04d19.62b36.61a
200714.48d26.11a29.63d33.11c41.03a49.72a58.60a50.85d42.47 31.32f23.36e23.35 35.70a
200818.31b24.28d24.11d29.33c41.72b46.00a52.96d50.93b40.14b30.69b27.72a18.85d33.76
200919.15d20.36c26.07a32.77 38.35e48.45a54.48 53.03 44.17 31.00b23.66a15.70a33.93
201027.48 28.39 26.13a32.00 36.94 47.62a52.29 51.52 42.93c37.79c25.63 24.10a36.07
201120.93a21.82 30.13a29.76a37.29 46.33 51.39 53.16 44.20 34.39 -----z-----z36.94b
2012-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2013-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2014-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
2015-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
Period of Record Statistics
MEAN19.76 24.43 28.77 33.27 40.38 47.15 52.67 50.68 41.67 33.05 26.48 21.87 34.84
S.D.6.44 4.47 3.07 2.86 2.81 3.54 3.84 3.19 2.89 3.47 3.32 4.48 1.28
SKEW-1.17 -1.10 -0.09 1.17 -0.02 0.52 -0.71 -0.05 0.41 0.01 -0.64 -0.39 -0.93
MAX28.54 33.14 37.06 46.59 47.83 63.21 64.13 58.43 50.20 41.06 33.21 31.70 36.99
MIN-4.81 4.78 20.29 26.93 33.94 34.71 36.64 41.71 35.50 22.94 16.10 10.29 31.12
YRS76 80 84 75 81 83 83 81 79 77 78 78 33