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 69.7| -0.9 57.4| -1.3 83.1| -0.1 25.7| 1.2 111 32.0|CO 115.3|CA 5 3 20250902 70.3 69.6| -0.7 57.2| -1.2 83.5| 0.5 26.3| 1.7 111 33.4|CO 104.2|CA 3 3 20250903 70.0 68.3| -1.7 55.7| -2.3 82.0| -0.7 26.2| 1.5 111 36.3|ND 106.0|CA 6 1 20250904 69.7 67.4| -2.3 55.2| -2.5 80.4| -2.0 25.2| 0.5 111 34.7|MN 110.5|CA 8 0 20250905 69.3 66.2| -3.1 55.9| -1.4 77.2| -4.8 21.3| -3.4 111 27.1|MT 109.6|CA 3 1 20250906 68.8 65.1| -3.7 54.2| -2.7 77.5| -4.0 23.4| -1.3 111 23.5|NE 109.9|CA 9 0 20250907 68.3 65.4| -2.9 53.1| -3.3 78.4| -2.6 25.3| 0.7 111 29.7|MN 112.1|CA 6 0 20250908 67.9 66.4| -1.5 53.5| -2.6 79.8| -0.7 26.4| 2.0 111 34.7|WV 108.7|CA 4 0 20250909 67.4 66.8| -0.6 54.0| -1.7 80.4| 0.4 26.4| 2.1 111 34.9|WY 105.1|CA 4 0 20250910 67.1 68.0| 0.9 55.5| 0.1 81.4| 1.8 25.9| 1.7 111 35.8|CO 102.6|AZ 1 2 20250911 66.8 68.9| 2.1 56.7| 1.5 82.3| 3.0 25.7| 1.6 111 38.5|ME 99.9|AZ 5 0 20250912 66.6 68.7| 2.1 56.4| 1.5 82.3| 3.2 25.9| 1.7 111 32.4|MT 99.3|CA 1 3 20250913 66.4 67.9| 1.5 56.5| 1.8 80.9| 2.0 24.3| 0.2 111 34.2|MT 103.1|CA 1 5 20250914 66.2 67.8| 1.6 55.9| 1.4 80.8| 2.2 24.9| 0.8 111 30.4|NM 106.2|CA 3 3 20250915 66.0 68.4| 2.4 55.8| 1.4 82.5| 4.0 26.7| 2.6 111 33.3|NM 106.5|CA 1 2 20250916 65.9 68.3| 2.4 56.2| 1.9 82.4| 4.1 26.4| 2.3 111 30.0|WY 107.8|CA 2 2 20250917 65.8 67.2| 1.4 55.7| 1.6 80.3| 2.0 24.5| 0.4 111 30.9|CO 109.4|CA 0 3 20250918 65.7 67.0| 1.3 55.6| 1.6 79.9| 1.7 24.3| 0.1 111 29.3|CO 97.3|CA 0 4 20250919 65.5 67.0| 1.5 55.2| 1.5 80.4| 2.4 25.3| 1.0 111 30.2|CO 99.0|AZ 0 3 20250920 65.2 67.2| 2.0 55.5| 2.0 80.7| 3.0 25.2| 1.0 111 30.0|ME 101.3|AZ 0 3 20250921 64.8 67.4| 2.6 55.9| 2.7 80.7| 3.4 24.7| 0.6 111 29.7|ME 101.1|CA 0 0 20250922 64.5 66.7| 2.2 55.6| 2.7 79.5| 2.6 23.9| -0.1 110 28.8|WA 103.3|CA 0 2 20250923 64.3 67.1| 2.8 56.5| 3.9 79.5| 2.7 23.0| -1.2 110 25.7|MT 105.8|CA 0 5 20250924 64.3 67.3| 3.0 56.7| 4.2 79.4| 2.5 22.7| -1.7 110 27.9|MT 106.5|CA 0 6 20250925 64.2 66.9| 2.7 55.2| 2.9 80.0| 3.1 24.8| 0.2 111 28.4|NM 102.9|AZ 0 3 20250926 64.1 66.4| 2.3 54.1| 2.0 79.8| 3.0 25.8| 1.0 111 28.9|WA 102.0|CA 0 2 20250927 63.7 65.8| 2.1 53.0| 1.3 79.9| 3.4 26.8| 2.1 110 30.0|MT 99.5|CA 0 2 20250928 63.2 66.8| 3.6 53.9| 2.6 81.3| 5.4 27.5| 2.9 111 31.5|MT 97.2|CA 0 2 20250929 62.6 66.3| 3.7 54.1| 3.4 79.3| 4.1 25.2| 0.7 111 32.2|CO 98.6|CA 0 7 20250930 61.9 65.7| 3.8 55.1| 4.9 78.0| 3.5 22.9| -1.4 111 28.4|OR 96.6|CA 0 6 ----------------------------------------------------------------------------------------------------- 202509 66.2 67.3| 1.0 55.4| 0.9 80.5| 1.6 25.1| 0.7 110.9 23.5|NE 115.3|CA 62 73 Clim => 22-year climatology for 2005-2026 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 ~ 6 each day # of Rhis => Number of record high maximum temperatures, expected value ~ 6 each day