RICHLAND, WA

Average of Average Temperature (Degrees Fahrenheit)

(457015)

File last updated on March 28, 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
1944-----z-----z-----z-----z64.54r67.63 76.66 72.66 67.08 56.85 40.25b29.07j63.52f
194537.81 41.66 45.35 53.35d64.25a69.52c79.27 77.57a64.93c59.12e44.87d36.74f57.97a
194637.56f42.26c48.88b55.89b66.03b69.39c78.63a76.17h66.29a52.44d41.57c40.14f57.93c
194733.54d41.90g51.11c57.76c70.20a67.10a76.52b74.02c68.38 57.34b44.53 36.74 57.93a
194836.20f34.58d-----z-----z-----z73.03 71.60 72.56 67.33f50.74l43.30 30.61 54.28f
194914.85a33.43 45.53 56.32 66.73 69.10 75.37 74.50a67.95 50.52 46.31a37.66 53.19
195015.85 31.82 43.63 51.02 59.68 67.77 75.48 76.68 68.13 52.79 42.28a40.06 52.10
195135.67a37.82 41.65 55.07 62.71 69.73 78.62a74.94 67.50 55.11 41.80 31.77 54.37
195228.79 40.59 47.16 57.55 65.13 69.48 78.21 75.40 69.93 60.11 36.98 37.79 55.59
195346.89 44.38 49.73 54.03 61.42 65.50b76.65a75.11 69.35 57.74 46.70b42.95 57.54
195433.82 41.91a44.24 53.72a63.52 66.77b74.97 72.39 65.17 51.74 48.50 37.63 54.53
195534.82 39.21 42.90 50.25 59.25a71.35 73.55 75.35 67.42 56.48 36.42 32.80a53.32
195636.12a28.53 46.35 57.48 66.17a67.52 78.48 74.62a67.85 54.21 39.53 37.94 54.57
195720.79 37.95 46.06 55.93 66.05 71.83 75.50a73.31 69.83 52.82 43.25 42.87a54.68
195840.58 47.64 45.97 54.03a70.13 75.33 81.97 80.69 67.93 56.16 45.40 38.72a58.71
195936.44 39.32 47.92a55.43 59.61 68.82 75.77 71.53 64.23 55.48 40.37 36.93a54.32
196025.95a40.41 46.73 54.47 59.81 69.33 79.77 71.58 65.73 56.93a45.27 32.32 54.03
196137.29 47.89 49.23 55.10 62.21 74.83 78.21 79.58 63.88 53.87 37.95b37.74 56.48
196234.40a39.98 44.71 57.35 59.53 68.95a75.03 72.66 67.60 54.92 47.28 40.58 55.25
196329.85 41.36 48.18 53.33 63.18 69.68 72.13 74.77 70.75 58.19 47.27 33.39 55.17
196439.73 41.00 45.15 52.38 59.89 67.93 74.77 69.92 64.10 54.29 41.78 30.95 53.49
196536.47 43.96 43.66 56.17 60.42 68.07 74.68 74.10 63.70 58.77 47.57 37.19 55.40
196638.56 42.41 47.42 55.81a63.45 66.97 72.92a73.63 68.53 54.95 46.68 41.24 56.05
196744.29 46.02 47.02 50.35 61.24 70.92 75.77 78.00 70.45 57.18 44.38 37.00 56.88
196838.90 44.09 50.05 52.58 62.61 69.20 76.84 70.77 66.32 52.85a43.91a34.40 55.21
196924.13a34.61 46.48 53.98 64.40 73.38 73.08 69.82 65.03a49.65 42.05 35.75a52.70
197032.82 41.14 44.82a49.33 60.68a71.35 75.60 72.58a60.53 50.39 40.77 33.69 52.81
197138.22a40.18 41.84 51.73 62.42 63.92 74.39 76.85 59.92 51.79 42.72 34.48 53.20
197234.19 37.33 47.85 50.32 62.66 68.86a73.37a74.40a61.15 51.95 41.75 30.73 52.88
197331.03 38.80 47.50 53.40 62.08 67.25b74.47 71.90 64.78 54.02 41.93 40.82 54.00
197430.74 43.75 46.98 53.82 59.40 71.77 73.98 74.94 67.97 53.65 44.88 40.03 55.16
197535.77 35.50a44.24 49.03 60.10 66.72 77.89 71.31 66.25 54.61 41.57b37.00a53.33
197636.27 39.83 43.95 51.67 61.18 65.47 73.50 71.44 68.83 53.35 42.10 32.69 53.36
197727.35a42.64 47.53 57.76a59.18 73.22 74.39 79.08 62.67a53.21 42.78 38.06 54.82
197834.18 40.84 49.55 53.87 59.87 70.50 75.55a73.16 64.35 52.68 35.36b31.77 53.47
197915.26 36.21 47.92 52.97 63.34 69.85 76.40 75.13 68.55 57.68 37.82 39.29 53.37
198027.08 36.38a46.48 56.10 62.05 65.72 74.95 71.02 -----z53.90 43.75 38.48 52.36a
198139.00 40.89 49.44 53.97 61.40 65.95 73.31 77.23 66.08 52.42 44.18 35.19 54.92
198233.22a40.27b46.73 51.25 60.05a70.12 72.97 73.52 63.90a51.69 38.47 34.09c53.02
198340.22b43.11 50.12a52.58 62.98 66.83 71.56d76.38a60.50 51.77 46.05 24.85 53.91
198433.63 40.53 48.56 50.93 56.63 65.32 74.45b73.78b62.17c50.19e41.96d29.10f54.38a
198527.45b32.30c45.92 56.64b63.60b70.24a80.14b72.18c61.66b53.79e30.90d23.70a51.54
198635.78b41.37b50.75c52.43a63.31e73.19c70.54d77.48e62.88f54.62c44.79a33.73e54.36a
198732.15e41.80f49.02d56.57h64.72f70.77f74.69w72.21g66.46f53.25e44.83f32.63e41.76h
198833.83h40.90c45.94g53.84e60.98a66.82 73.39 71.52a63.77 57.60 45.40a33.20a56.74b
198938.34c26.39a44.39 55.97 59.73 69.48a72.28a70.47a64.80 53.21 45.34a33.55 52.83
199041.00a37.50a46.15a56.43 58.87 67.47a75.94 74.05 69.78 52.08 46.72 26.60b54.38
199128.58 43.25 43.56 52.85 58.16 62.80 73.73 75.22b66.16a52.65a41.48 38.42a53.07
199237.79 41.48 48.91b54.43c63.11 71.83 73.16 72.73 62.02 53.65 41.61c31.27 54.33
199323.24b30.71 41.13 52.38a65.02a66.37 67.76 70.44 64.35 54.06 35.52 36.23 50.60
1994-----z35.98a48.34b56.33 62.48b66.50 76.29 -----z-----z53.29 39.91a35.95a52.79c
199534.65 42.48a-----z52.83d63.02 66.75 73.92 69.82 67.77 -----z45.22a34.16 55.06b
199630.58 33.33 44.45a54.47 56.58 65.84a74.57a71.95 62.97 52.11 38.64a30.39c51.32
199733.82 39.75 46.90 51.35 62.37a65.70 72.23 75.50b65.35 52.60b42.89c35.08 53.63
199836.35a41.79 47.24 52.18 60.23 68.10a78.48 75.56 68.87 51.68a-----z35.05 55.96a
199939.56 42.93 45.61 50.66a57.15 66.08 71.21 74.40 62.88 51.90 46.67 39.18 54.02
200034.92 39.33 45.39 55.23 60.71 67.63 72.68 72.45 62.63 51.68 35.42 31.08 52.43
200133.92 36.77 45.77a51.33 62.15 64.73 72.98 74.92 -----z52.98a42.72 36.71 52.27a
200238.90 38.70 43.24 53.18 58.53 68.53 75.97 72.13 64.52 50.40 41.37 38.44 53.66
200339.32 40.12 50.03 53.23 59.97 69.15 76.55 74.18 66.92 57.26 38.95 34.76 55.04
200430.05 37.26 50.48 54.82 60.97 68.83 76.55 75.03 64.08 54.81 41.00 37.33a54.27
200531.61 38.27 48.89 53.88 62.77 66.80 74.98 74.10 63.50 55.06 40.12 30.06 53.34
200641.02 37.29 45.84 52.77b61.37a68.35 77.24 72.45 64.87 52.17a42.38 31.37 53.93
200730.13 39.39 48.24 52.25 61.24 67.12 77.62a71.79 64.37 52.27 41.03 35.65 53.42
200830.52 41.52c44.18 48.80 61.98 65.55 74.05 72.27 64.73 52.15 43.03 27.55 52.19
200932.98 36.30 42.68 51.80 60.97 69.20 76.34 74.03 66.75 50.45 42.43 26.34 52.52
201038.74b42.33a46.89 52.90 56.40 65.13 73.74 72.58 64.67 53.95 38.67 34.58a53.38
201135.79 37.14 45.02 48.10 56.26 64.95a70.32 74.18 67.69a54.48 40.32 32.29 52.21
201234.42 38.88 45.90 53.88a59.10 64.18 74.40 74.31 65.55 52.89 43.41a37.84 53.73
201331.87 40.20a46.81 52.90 61.44 67.75 76.84 75.65 67.55 50.31 38.68 28.27a53.19
201435.24 35.00 47.18c54.17a62.66 67.47 78.21 75.85 66.73 58.40 39.62 36.95 54.79
201535.05 43.71 50.73 52.93 64.31 75.03 78.00 74.61 63.60 58.56 39.82 36.11 56.04
201634.82 44.07 47.94 58.85 63.74 69.22 73.55 74.21 64.32 53.95 47.43 28.87 55.08
201722.26 32.93 46.61 52.07 61.50 68.57 76.77 75.13 65.52 52.06 42.48 31.40 52.28
201838.23 39.45 44.98 53.58 66.02 67.53a76.66 73.81 63.67 52.34 41.05 37.00 54.53
201935.98 25.11 37.03 55.27 63.42 69.20 73.08 75.24 65.43 48.23 38.52a34.85 51.78
202040.15 41.19 45.28a54.25 61.52 69.32 80.06 80.24 70.50 57.89 44.87 37.41b56.89
202138.86b34.75b46.57a54.65 62.27 74.38 79.22a74.60 65.80b54.24 46.13 36.22a55.64
202231.02 38.38 48.98 47.60 57.00 66.82 77.47 78.48 68.42 58.80a34.79b25.21 52.75
202335.07a37.75 43.24 51.35 65.97 70.07 76.98a75.48 65.57 53.89 39.65 37.55a54.38
202430.00 41.40 47.32f-----z-----z-----z-----z-----z-----z-----z-----z-----z35.70j
Period of Record Statistics
MEAN33.61 39.07 46.43 53.52 61.80 68.54 75.33 74.13 65.72 53.97 42.07 34.73 54.02
S.D.6.13 4.30 2.56 2.36 2.80 2.68 2.57 2.39 2.55 2.56 3.47 4.16 1.51
SKEW-1.07 -0.89 -0.63 -0.15 0.46 0.56 -0.05 0.52 -0.06 0.44 -0.52 -0.54 0.53
MAX46.89 47.89 51.11 58.85 70.20 75.33 81.97 80.69 70.75 60.11 48.50 42.95 58.71
MIN14.85 25.11 37.03 47.60 56.26 62.80 67.76 69.82 59.92 48.23 30.90 23.70 50.60
YRS76 78 76 77 77 79 79 77 74 78 78 76 66