California Temperature Monitor - 10 CRN sites - December 2025 ----------------------------------------------------------------------------------------------------- TAverage(deg F) TMinimum TMaximum TRange # of Lowest Highest # of Date Clim Obs Dep Obs Dep Obs Dep Obs Dep Sites Tminimum Tmaximum Rlos Rhis ----------------------------------------------------------------------------------------------------- 20251201 48.6 49.4| 0.8 40.9| 1.9 58.6| -0.1 17.8| -2.0 10 18.5|NV 73.2|CA 0 0 20251202 48.5 48.1| -0.4 39.1| 0.1 57.9| -0.7 18.9| -0.8 10 24.8|NV 71.1|CA 0 0 20251203 48.4 48.5| 0.1 39.1| 0.2 58.7| 0.3 19.5| 0.0 10 21.4|NV 70.3|CA 0 0 20251204 48.2 48.7| 0.5 39.7| 0.9 58.9| 0.7 19.2| -0.3 10 23.7|NV 72.5|CA 0 0 20251205 48.0 49.3| 1.3 39.7| 1.1 59.8| 1.7 20.1| 0.6 10 30.9|NV 74.1|CA 0 0 20251206 47.9 48.9| 1.0 40.8| 2.3 58.8| 0.8 18.0| -1.5 10 28.6|NV 74.1|CA 0 0 20251207 47.9 50.1| 2.2 41.6| 3.1 60.4| 2.5 18.8| -0.6 10 31.3|NV 79.9|CA 0 0 20251208 47.8 52.1| 4.3 42.5| 4.0 63.2| 5.3 20.7| 1.3 10 32.2|NV 82.9|CA 0 1 20251209 47.8 53.4| 5.6 43.7| 5.2 64.7| 6.8 21.0| 1.6 10 35.1|NV 84.4|CA 0 3 20251210 47.8 55.6| 7.8 46.4| 7.9 67.4| 9.6 21.0| 1.8 10 37.4|NV 90.0|CA 0 1 20251211 47.5 55.4| 7.9 45.9| 7.5 67.5| 10.1 21.6| 2.6 10 31.5|NV 85.1|CA 0 3 20251212 47.1 54.3| 7.2 46.1| 8.0 65.9| 9.1 19.9| 1.1 10 31.6|NV 81.0|CA 0 3 20251213 46.6 52.3| 5.7 43.6| 5.9 63.3| 7.1 19.8| 1.2 10 36.9|NV 77.5|AZ 0 1 20251214 46.2 51.5| 5.3 43.1| 5.8 61.5| 5.8 18.5| 0.1 10 36.9|CA 77.4|AZ 0 0 20251215 46.0 52.9| 6.9 43.4| 6.3 62.2| 6.8 18.9| 0.5 10 34.9|NV 79.9|AZ 0 1 20251216 46.0 53.4| 7.4 45.3| 8.2 63.0| 7.6 17.7| -0.6 10 38.3|NV 80.2|CA 0 1 20251217 46.1 52.4| 6.3 44.7| 7.4 61.8| 6.4 17.2| -1.0 10 28.2|NV 76.8|AZ 0 1 20251218 46.3 54.0| 7.7 44.9| 7.4 64.4| 8.9 19.6| 1.6 10 32.4|NV 85.6|CA 0 2 20251219 46.5 52.9| 6.4 45.5| 7.8 61.4| 5.8 16.0| -1.9 10 34.3|NV 78.8|CA 0 0 20251220 46.6 52.0| 5.4 44.8| 6.9 60.7| 5.0 15.9| -1.9 10 32.5|NV 78.3|AZ 0 1 20251221 46.6 54.4| 7.8 47.6| 9.6 62.0| 6.3 14.4| -3.3 10 37.0|NV 79.0|AZ 0 0 20251222 46.6 53.4| 6.8 46.3| 8.3 62.1| 6.5 15.8| -1.8 10 32.2|NV 80.4|AZ 0 1 20251223 46.4 53.5| 7.1 47.5| 9.7 59.0| 3.6 11.5| -6.0 10 35.1|NV 68.7|AZ 0 0 20251224 46.0 54.0| 8.0 50.0| 12.6 59.8| 4.8 9.8| -7.8 9 30.4|NV 75.4|AZ 0 2 20251225 45.6 52.6| 7.0 48.3| 11.4 57.6| 3.0 9.3| -8.4 10 28.2|NV 75.2|AZ 0 0 20251226 45.1 49.8| 4.7 44.3| 7.9 55.2| 1.0 10.9| -6.9 10 23.0|NV 69.6|AZ 0 0 20251227 44.8 46.0| 1.2 38.3| 2.2 53.8| -0.2 15.4| -2.5 10 10.0|NV 67.8|AZ 0 0 20251228 44.7 46.1| 1.4 37.6| 1.7 56.3| 2.4 18.7| 0.7 10 10.9|NV 68.7|AZ 0 0 20251229 44.7 49.4| 4.7 39.8| 4.0 59.0| 5.0 19.1| 0.9 10 20.5|NV 71.2|CA 0 1 20251230 44.7 51.7| 7.0 44.0| 8.2 58.8| 4.8 14.9| -3.4 10 32.2|NV 74.7|AZ 0 2 20251231 44.8 50.8| 6.0 44.9| 9.1 56.4| 2.2 11.5| -6.9 10 30.6|NV 69.4|CA 0 0 ----------------------------------------------------------------------------------------------------- 202512 46.6 51.5| 4.9 43.5| 5.9 60.6| 4.5 17.1| -1.4 10.0 10.0|NV 90.0|CA 0 24 Clim => 21-year climatology for 2006-2026 Obs => Daily Observation Dep => Departure from climatology TAverage => Average over all 288 5-min observations each day # of Rlos => Number of record low minimum temperatures, expected value ~ 0.5 each day # of Rhis => Number of record high maximum temperatures, expected value ~ 0.5 each day