USA National Temperature Monitor - 114 CRN sites - September 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 ----------------------------------------------------------------------------------------------------- 20250901 70.6 69.6| -1.0 57.4| -1.4 83.0| -0.2 25.6| 1.2 111 32.0|CO 115.3|CA 9 3 20250902 70.4 69.6| -0.8 57.2| -1.3 83.4| 0.4 26.3| 1.7 111 33.4|CO 104.2|CA 8 4 20250903 70.1 68.4| -1.7 55.7| -2.4 82.0| -0.8 26.3| 1.6 111 36.3|ND 106.0|CA 11 1 20250904 69.8 67.4| -2.4 55.2| -2.6 80.4| -2.1 25.2| 0.5 111 34.7|MN 110.5|CA 17 1 20250905 69.4 66.2| -3.2 55.9| -1.5 77.2| -4.9 21.3| -3.4 111 27.1|MT 109.6|CA 6 2 20250906 69.0 65.2| -3.8 54.2| -2.8 77.6| -4.1 23.4| -1.3 111 23.5|NE 109.9|CA 14 0 20250907 68.4 65.3| -3.1 52.8| -3.8 78.4| -2.7 25.6| 1.1 111 29.7|MN 112.1|CA 11 0 20250908 67.9 66.4| -1.5 53.5| -2.7 79.8| -0.7 26.4| 2.0 111 34.7|WV 108.7|CA 8 0 20250909 67.4 66.8| -0.6 54.1| -1.7 80.4| 0.4 26.3| 2.1 111 34.9|WY 105.1|CA 6 0 20250910 67.1 68.0| 0.9 55.5| 0.1 81.3| 1.8 25.9| 1.8 111 35.8|CO 102.6|AZ 2 2 20250911 66.8 68.9| 2.1 56.6| 1.5 82.3| 3.1 25.8| 1.7 111 38.5|ME 99.9|AZ 6 1 20250912 66.5 68.7| 2.2 56.5| 1.6 82.4| 3.4 25.9| 1.8 111 32.4|MT 99.3|CA 1 7 20250913 66.3 67.9| 1.6 56.5| 1.9 80.8| 2.1 24.3| 0.2 111 34.2|MT 103.1|CA 1 9 20250914 66.1 67.8| 1.7 55.9| 1.5 80.8| 2.3 24.9| 0.8 111 30.4|NM 106.2|CA 4 8 20250915 65.9 68.4| 2.5 55.8| 1.5 82.5| 4.2 26.7| 2.7 111 33.3|NM 106.5|CA 3 6 20250916 65.8 68.3| 2.5 56.2| 2.0 82.5| 4.3 26.3| 2.3 111 30.0|WY 107.8|CA 3 10 20250917 65.7 67.2| 1.5 55.7| 1.7 80.2| 2.1 24.6| 0.5 111 30.9|CO 109.4|CA 2 6 20250918 65.6 67.0| 1.4 55.6| 1.7 79.8| 1.8 24.3| 0.1 111 29.3|CO 97.3|CA 1 5 20250919 65.4 67.0| 1.6 55.2| 1.6 80.5| 2.6 25.2| 1.0 111 30.2|CO 99.0|AZ 1 8 20250920 65.1 67.2| 2.1 55.5| 2.1 80.7| 3.2 25.3| 1.1 111 30.0|ME 101.3|AZ 0 4 20250921 64.7 67.4| 2.7 55.9| 2.9 80.6| 3.5 24.7| 0.6 111 29.7|ME 101.1|CA 0 4 20250922 64.4 66.7| 2.3 55.6| 2.9 79.5| 2.7 23.9| -0.1 110 28.8|WA 103.3|CA 0 3 20250923 64.2 67.1| 2.9 56.5| 4.0 79.5| 2.9 23.0| -1.2 110 25.7|MT 105.8|CA 0 6 20250924 64.1 67.2| 3.1 56.6| 4.3 79.3| 2.6 22.7| -1.7 110 27.9|MT 106.5|CA 0 8 20250925 64.1 66.9| 2.8 55.2| 3.0 80.0| 3.2 24.8| 0.2 111 28.4|NM 102.9|AZ 0 4 20250926 63.9 66.3| 2.4 54.1| 2.1 79.8| 3.1 25.7| 1.0 111 28.9|WA 102.0|CA 0 2 20250927 63.6 65.8| 2.2 53.1| 1.4 79.9| 3.6 26.8| 2.1 110 30.0|MT 99.5|CA 0 3 20250928 63.0 66.7| 3.7 53.9| 2.7 81.3| 5.6 27.6| 3.0 110 31.5|MT 97.2|CA 0 3 20250929 62.4 66.3| 3.9 54.2| 3.6 79.4| 4.4 25.2| 0.8 110 32.2|CO 98.6|CA 0 11 20250930 61.8 65.9| 4.1 55.2| 5.2 78.1| 3.8 23.0| -1.3 110 28.4|OR 96.6|CA 0 9 ----------------------------------------------------------------------------------------------------- 202509 66.2 67.3| 1.1 55.4| 1.0 80.4| 1.7 25.1| 0.8 110.8 23.5|NE 115.3|CA 114 130 Clim => 21-year climatology for 2005-2025 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 ~ 6 each day # of Rhis => Number of record high maximum temperatures, expected value ~ 6 each day