IRON MOUNTAIN, CA

Average of Minimum Temperature (Degrees Fahrenheit)

(044297)

File last updated on March 29, 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
193545.67j50.39 48.68 58.93 64.19 77.43 82.06 81.45 73.93 59.68 47.13 45.46c62.67a
193642.90 44.31 55.87 65.90 69.32 77.53 84.32 82.42 72.80 62.58 51.47 42.13 62.63
193732.61 43.79 48.71 57.10 67.23 75.40 82.97 81.81 78.03 63.74 50.83 50.87 61.09
193846.71 45.82 48.65 59.37 66.74 75.90 81.84 81.81 76.37 60.13a46.57 45.48 61.28
193942.70a40.96 51.65 60.13 68.16 74.87 81.28b83.47a71.73 60.97a52.96c45.88e61.23
194046.41b47.62 54.34b59.70 71.23a79.00 80.27a81.85d71.87 62.68 48.89b47.70h63.99a
194144.55 50.13e51.67a55.14b68.19 72.23d79.87 77.45 66.07 58.68 50.50 45.55 60.00
194244.93a43.89 48.97 58.48a65.23 74.20 84.13a79.42 69.50 61.29 50.93 43.30a60.36
194343.16 48.29 52.47a59.80 68.30a67.97 80.81 78.71 74.33 62.32 50.03 45.00 60.93
194441.17a42.07b49.64c56.90 65.19 69.07a77.13 78.81 71.90a61.73a48.80 45.81 59.02
194542.58 46.54 48.13 56.00a68.74 73.38a82.55 80.19 75.13 65.03 49.52a41.40a60.77
194642.77 41.68 51.71 63.27 67.81 77.90 81.52 82.00 75.27 57.74 47.43 46.87 61.33
194741.03 48.93 55.45 61.20 70.58 75.83 81.84 78.23 74.77 62.16 47.13 42.84 61.67
194841.77 42.45 45.71 58.87 65.61 74.13 79.58 78.16 72.67 62.90 48.05i38.81 60.06a
194933.87 39.29 48.45 59.30 64.23 76.43 82.03a78.13 76.57 59.06 54.57 40.48 59.37
195036.29 47.71 52.32 62.13 65.29 73.63 81.55 78.97 71.38a63.61 53.07 48.35 61.19
195142.50a44.75 50.32 58.60 66.61 72.70 81.87 78.26 73.20 61.65 49.00 40.81 60.02
195239.35 45.07 46.52 58.83 70.00 71.50 79.42 82.71 74.77 64.71 48.33 42.45 60.31
195347.16 45.21 50.94 56.93 60.03 72.60 84.48 79.29 72.57 61.77 53.17 42.13 60.52
195441.19 52.89 48.87 62.43 68.29 73.30 82.60a77.10 73.23 62.87 54.00 43.97 61.73
195541.26 42.64 49.71 54.23 63.61 72.83 79.10a79.16 72.23 64.61 50.30 44.77 59.54
195644.03 39.79a49.32 58.30 66.97 76.43 80.87 77.10 76.60 59.55 48.77 45.10 60.24
195742.42 50.14 52.68 58.83 62.90 78.37 82.10 80.03 72.93 59.35 47.80 44.68 61.02
195842.30a47.75 47.29 58.43 71.35 76.60 79.77 82.71 76.14a66.39 50.57 46.06 62.11
195944.58 43.33a54.13 62.80 66.37a78.87 85.07a79.10a71.37 62.39 52.90 46.06 62.25
196038.35 42.72 54.58 60.50 65.45 79.50 82.52 80.39 75.10 60.87 50.47 42.10 61.05
196146.16 46.50 51.26 59.07 65.87 80.03 82.84 78.55 67.13 59.61 47.24a41.29 60.46
196243.48 46.71 44.77 63.47 63.42 74.45a81.10a81.29 74.60 61.42 52.37 46.48 61.13
196338.47a51.25 49.81 53.97 67.48 70.80 81.29 80.77 73.97 64.40a52.27 43.00 60.62
196438.26 40.90 47.06 56.40 64.16 72.21b81.90 80.48 71.67 66.81 47.13 43.26 59.19
196544.87a44.15a48.65 57.73 64.42 69.24a80.39 79.97 68.63 62.74 52.97 44.00 59.81
196638.39 40.93 51.23 60.80 68.52 75.96b81.39 82.43a73.79a60.74 51.03a45.52 60.89
196743.00 45.71 51.16 50.13 66.10 72.60 83.87 83.62b75.00 62.84 54.07 40.55b60.72
196843.42 52.24 52.32 54.17 64.03 73.43 80.87 76.23 72.43 61.26 51.33 38.58 60.03
196945.68 45.68 49.06 57.30 67.90 72.57 80.19 84.17a74.30 59.65 53.73 44.10 61.19
197041.32 48.68 50.48 51.83a66.81 75.27 79.71 81.39 70.87 59.40a50.83 42.48 59.92
197141.97a46.67a50.35 57.73 61.10 74.73 83.81 78.84 72.20 55.90 48.38a40.48 59.35
197239.77 48.00 57.71 59.47 66.77 75.73 82.90 79.10 71.93 58.74 47.87 40.00 60.67
197340.13 47.32 -----z57.53 69.70a79.23 83.10b79.58 70.93 60.65 48.47 45.39 62.00a
197441.63a45.79 53.32 58.03 66.52 78.50 80.29 78.48 76.30 62.65 50.63 40.71 61.07
197540.58 42.04 47.77 51.53 65.58 74.67 82.26 77.52 75.34a59.61 49.43 45.77 59.34
197643.97 48.93 49.68 54.43 68.26 76.27 80.94 75.77 70.69a61.65 51.03 41.55 60.26
197742.90 48.18 46.42 59.63 60.77 77.60 82.43a81.42 71.73 63.94 52.93 46.87 61.24
197844.74 47.82 54.81 56.60 66.32 77.87 83.19 78.42 71.53 65.26 49.17 39.74 61.29
197938.47a42.11 50.03 57.60 65.65 75.60 79.39 76.16 74.33 61.58 48.30 43.77 59.42
198047.55 49.45 49.45 57.50 62.16 73.38a82.97 78.45 72.93 61.68 51.27 47.74 61.21
198147.16 46.46 52.52 61.97 66.19 80.63 83.19 81.13 75.53 59.68 52.43 45.65 62.71
198241.61 49.18 50.48 59.25b66.23 73.79b79.97 80.35 71.04b58.74 48.73 41.97 60.11
198344.81 47.18 52.58 54.33 66.54c73.10 79.07a77.00 76.33 62.39 51.00 45.30a60.80
198446.45 46.62 52.71 57.70 71.03 75.07 80.71 79.48 75.50 58.26 47.77 42.90 61.18
198544.03 45.56a49.03 61.87 67.10 77.37 83.32 79.32 66.31a60.00 48.83a45.90 60.72
198648.07b48.44a53.55b55.47 62.19 76.83 77.90 81.65 65.62a59.18c52.77d43.45b60.43
198740.89c48.64c50.39c61.78c67.65e77.76a77.44d80.26 72.83a63.30a48.60e39.54c60.76
198842.41b46.62 51.74 57.38a67.35 74.59a83.42 79.03 72.93 67.17a51.93c44.07b61.55
198943.93a46.14 56.23a66.27 68.23a76.83 83.58 78.97a73.79a-----z53.69a45.35 63.00a
199042.33a43.89 53.23 60.34a65.00b75.79a81.60a78.29 73.76a62.30a51.04b37.70a60.44
199142.03b50.61 44.83a53.23d61.37d68.97 76.60a76.83b72.93a64.41b50.88d42.97b58.81
199244.04f49.04b52.00a60.14b68.60a73.88e78.94 80.54c73.07a62.62b47.89b39.68c62.40a
199343.46c46.24c52.00a52.75f65.00c70.08f74.94 75.69b68.55a57.93d41.65d36.88g58.38c
199439.97b44.46b55.23a61.64b66.40a78.63 79.58 82.03 74.77 58.72b43.97 43.33a60.73
199545.94 52.32 52.29 55.17 62.52 73.54b81.55 83.52 76.90 60.84 54.54b45.00a62.01
199644.23a50.28 52.68 60.07a69.47a75.40 83.84 80.90 73.37 63.20a52.96d43.07d62.46
199745.80a47.25 54.97 60.33 74.61 74.83 77.29 81.68i77.55a61.17a52.47 43.81d60.92a
199844.61 46.36 51.68 55.17 62.97 71.24a83.06 81.35 71.52a59.90 50.17a43.90a60.16
199945.16 -----z48.71 54.44c66.30a75.27 80.03a79.16 74.67 61.79c52.13 45.10 62.07a
200046.83a48.44d51.53a63.70c70.55 78.00 80.77 80.93c72.27d61.10b45.43b45.35 62.08
200142.73a44.31b54.74 56.40 72.69b77.45a78.58 79.23a73.57 62.40a54.03a40.36c61.37
200243.36c46.74a50.66b60.83a67.57c78.00b83.86b78.58 73.93b60.79b54.00a43.23 61.80
200350.13a49.14 53.97a57.00e69.61 76.63 -----z82.65e76.29b67.76b48.03 44.23 61.40a
200444.61 46.28 59.62b61.43 69.39 76.23 82.68 80.26 71.70 60.23 48.07a45.60a62.17
200545.50k47.88d53.52 55.24a68.26 73.73 82.90b80.03 70.07a62.06 53.36b42.14c62.65a
200643.97a48.00b47.75c55.81c70.65 80.07 84.03a79.50a72.00 59.57a51.86a41.82c61.25
200740.74d49.84c55.46e58.83f70.78d75.70 82.18c81.38b71.61b61.35e54.11c41.90a62.28a
200842.11c47.29a52.70a59.69a65.11c77.52a81.96e82.71c75.50d63.89c56.79f45.06 63.05a
200949.33g47.82 52.32c59.88d76.24f75.20 85.89d80.23e77.69d60.03a53.40 42.20a63.47b
201045.38b48.89a51.70a55.38d64.00 77.11b84.79b81.32 73.87 64.13 51.57 48.23a62.20
201145.97a45.14g54.54e59.79a64.77 75.00 81.65 83.36f75.86a63.37a49.47 41.48 61.19b
201245.52 48.00 52.00b60.17a71.45 77.97 81.21c83.39 77.73 64.07c52.90i45.82c64.30a
201345.35e45.00 57.68 61.24e70.13h79.43 84.53a81.19d74.47 58.45 51.83a45.72b62.26a
201449.33j50.79d55.71c61.76e70.08g77.00f85.13a79.04c78.10a66.61 52.43 47.74 64.15c
201546.50c52.32 58.84 60.43b65.03 79.38a80.42 85.10 77.96b68.50a50.46b41.61 63.88
201644.63a53.45 57.38e62.14b67.88e81.33f84.71g83.04d72.30 67.56f54.07b45.65 60.06c
201746.07c51.18f57.67g62.14b68.55t80.13 86.12f82.44f77.55j66.61h55.83f47.38r62.78i
201848.75o47.18 51.67p64.43i69.87 77.53 86.23 84.93a78.50 65.16 52.48a46.52 67.60c
201946.45 42.04 52.80a62.87 64.24b77.48g83.71 84.03 74.53 59.16 51.83 44.90b60.60a
202041.87a46.52b50.89d60.43b73.35 75.48a83.06 87.68c80.00a64.62b50.64b44.75c63.27
202144.42 48.39 50.14b64.18b70.18c80.73 87.03a82.52 76.90 59.97 56.37 43.30a63.68
202245.06 47.29 53.61 62.57 69.00 79.14b86.13 83.77 79.83g68.03a51.96b43.52b62.74a
202344.63a45.30a50.80a58.64e70.52h74.07a88.65 83.37d74.07b66.24b52.97 47.58 62.39a
202445.10 49.76 -----z-----z-----z-----z-----z-----z-----z-----z-----z-----z47.43j
Period of Record Statistics
MEAN43.16 46.70 51.60 58.78 66.88 75.60 81.83 80.37 73.52 61.95 50.68 43.78 60.95
S.D.3.01 3.08 3.07 3.18 2.94 2.81 2.38 2.32 2.80 2.59 2.61 2.49 1.08
SKEW-0.87 -0.23 0.20 -0.24 0.05 -0.41 -0.09 0.33 -0.46 0.43 -0.61 -0.08 0.43
MAX50.13 53.45 59.62 66.27 74.61 80.73 88.65 87.68 80.00 68.50 56.37 50.87 63.88
MIN32.61 39.29 44.77 50.13 60.03 67.97 74.94 75.69 65.62 55.90 41.65 37.70 58.81
YRS84 87 86 86 84 85 86 86 87 86 85 86 65