National Temperature Index

National USHCN monthly temperature updates have been discontinued. The official CONUS temperature record is now based upon nClimDiv. USHCN data for January 1895 to August 2014 will remain available for historical comparison.

Time Series


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Dates USCRN ClimDiv USHCN
189512 - 189602 -99.99°F -0.73°F -0.51°F
189612 - 189702 -99.99°F -1.10°F -0.88°F
189712 - 189802 -99.99°F -1.21°F -1.03°F
189812 - 189902 -99.99°F -5.52°F -5.30°F
189912 - 190002 -99.99°F -1.31°F -1.09°F
190012 - 190102 -99.99°F -1.49°F -1.20°F
190112 - 190202 -99.99°F -2.47°F -2.17°F
190212 - 190302 -99.99°F -3.44°F -3.13°F
190312 - 190402 -99.99°F -3.58°F -3.32°F
190412 - 190502 -99.99°F -4.79°F -4.53°F
190512 - 190602 -99.99°F -0.95°F -0.71°F
190612 - 190702 -99.99°F 0.23°F 0.53°F
190712 - 190802 -99.99°F -0.09°F 0.12°F
190812 - 190902 -99.99°F 0.07°F 0.29°F
190912 - 191002 -99.99°F -5.30°F -5.05°F
191012 - 191102 -99.99°F -0.64°F -0.37°F
191112 - 191202 -99.99°F -4.13°F -3.80°F
191212 - 191302 -99.99°F -2.50°F -2.14°F
191312 - 191402 -99.99°F -1.02°F -0.70°F
191412 - 191502 -99.99°F -3.09°F -2.74°F
191512 - 191602 -99.99°F -2.00°F -1.74°F
191612 - 191702 -99.99°F -4.37°F -4.07°F
191712 - 191802 -99.99°F -4.37°F -4.07°F
191812 - 191902 -99.99°F -0.63°F -0.41°F
191912 - 192002 -99.99°F -2.91°F -2.72°F
192012 - 192102 -99.99°F 1.32°F 1.53°F
192112 - 192202 -99.99°F -2.20°F -1.95°F
192212 - 192302 -99.99°F -0.90°F -0.65°F
192312 - 192402 -99.99°F -1.00°F -0.73°F
192412 - 192502 -99.99°F -1.82°F -1.58°F
192512 - 192602 -99.99°F 0.02°F 0.29°F
192612 - 192702 -99.99°F 0.12°F 0.36°F
192712 - 192802 -99.99°F -1.96°F -1.71°F
192812 - 192902 -99.99°F -4.75°F -4.45°F
192912 - 193002 -99.99°F -0.94°F -0.66°F
193012 - 193102 -99.99°F 0.56°F 0.80°F
193112 - 193202 -99.99°F 0.96°F 1.19°F
193212 - 193302 -99.99°F -2.37°F -2.06°F
193312 - 193402 -99.99°F 1.80°F 2.06°F
193412 - 193502 -99.99°F -0.08°F 0.16°F
193512 - 193602 -99.99°F -5.70°F -5.43°F
193612 - 193702 -99.99°F -3.13°F -2.87°F
193712 - 193802 -99.99°F 0.14°F 0.40°F
193812 - 193902 -99.99°F -0.77°F -0.49°F
193912 - 194002 -99.99°F -1.67°F -1.42°F
194012 - 194102 -99.99°F 0.45°F 0.73°F
194112 - 194202 -99.99°F -1.24°F -0.92°F
194212 - 194302 -99.99°F -0.59°F -0.29°F
194312 - 194402 -99.99°F -0.44°F -0.12°F
194412 - 194502 -99.99°F -1.33°F -1.07°F
194512 - 194602 -99.99°F -1.69°F -1.41°F
194612 - 194702 -99.99°F -0.35°F -0.09°F
194712 - 194802 -99.99°F -2.67°F -2.39°F
194812 - 194902 -99.99°F -3.34°F -3.04°F
194912 - 195002 -99.99°F -0.39°F -0.08°F
195012 - 195102 -99.99°F -0.89°F -0.63°F
195112 - 195202 -99.99°F -0.58°F -0.31°F
195212 - 195302 -99.99°F 1.77°F 2.02°F
195312 - 195402 -99.99°F 1.86°F 2.07°F
195412 - 195502 -99.99°F -2.04°F -1.79°F
195512 - 195602 -99.99°F -1.81°F -1.63°F
195612 - 195702 -99.99°F 0.32°F 0.48°F
195712 - 195802 -99.99°F 0.05°F 0.27°F
195812 - 195902 -99.99°F -2.07°F -1.92°F
195912 - 196002 -99.99°F -1.50°F -1.27°F
196012 - 196102 -99.99°F -0.96°F -0.80°F
196112 - 196202 -99.99°F -2.49°F -2.33°F
196212 - 196302 -99.99°F -2.82°F -2.70°F
196312 - 196402 -99.99°F -3.07°F -2.93°F
196412 - 196502 -99.99°F -1.35°F -1.25°F
196512 - 196602 -99.99°F -2.32°F -2.19°F
196612 - 196702 -99.99°F -0.59°F -0.46°F
196712 - 196802 -99.99°F -2.16°F -2.02°F
196812 - 196902 -99.99°F -2.73°F -2.64°F
196912 - 197002 -99.99°F -1.49°F -1.37°F
197012 - 197102 -99.99°F -1.32°F -1.16°F
197112 - 197202 -99.99°F -0.99°F -0.87°F
197212 - 197302 -99.99°F -2.46°F -2.36°F
197312 - 197402 -99.99°F -0.32°F -0.20°F
197412 - 197502 -99.99°F -0.55°F -0.47°F
197512 - 197602 -99.99°F 1.12°F 1.13°F
197612 - 197702 -99.99°F -3.46°F -3.41°F
197712 - 197802 -99.99°F -4.43°F -4.34°F
197812 - 197902 -99.99°F -6.86°F -6.78°F
197912 - 198002 -99.99°F -0.14°F -0.09°F
198012 - 198102 -99.99°F 1.26°F 1.34°F
198112 - 198202 -99.99°F -2.65°F -2.58°F
198212 - 198302 -99.99°F 1.79°F 1.84°F
198312 - 198402 -99.99°F -2.91°F -2.87°F
198412 - 198502 -99.99°F -2.90°F -2.86°F
198512 - 198602 -99.99°F -0.36°F -0.44°F
198612 - 198702 -99.99°F 0.94°F 0.95°F
198712 - 198802 -99.99°F -1.47°F -1.47°F
198812 - 198902 -99.99°F -1.23°F -1.30°F
198912 - 199002 -99.99°F 0.17°F 0.21°F
199012 - 199102 -99.99°F -0.10°F -0.19°F
199112 - 199202 -99.99°F 2.88°F 2.78°F
199212 - 199302 -99.99°F -2.35°F -2.45°F
199312 - 199402 -99.99°F -1.67°F -1.63°F
199412 - 199502 -99.99°F 2.08°F 2.10°F
199512 - 199602 -99.99°F -0.54°F -0.48°F
199612 - 199702 -99.99°F -0.17°F -0.05°F
199712 - 199802 -99.99°F 2.43°F 2.56°F
199812 - 199902 -99.99°F 2.80°F 2.97°F
199912 - 200002 -99.99°F 3.01°F 3.07°F
200012 - 200102 -99.99°F -2.22°F -2.36°F
200112 - 200202 -99.99°F 2.19°F 2.24°F
200212 - 200302 -99.99°F 0.09°F 0.13°F
200312 - 200402 -99.99°F -0.41°F -0.44°F
200412 - 200502 -99.99°F 1.99°F 1.88°F
200512 - 200602 2.05°F 2.01°F 2.01°F
200612 - 200702 0.01°F -0.03°F -0.13°F
200712 - 200802 -0.83°F -0.74°F -0.74°F
200812 - 200902 -0.20°F -0.24°F -0.32°F
200912 - 201002 -2.91°F -2.77°F -2.86°F
201012 - 201102 -1.78°F -1.73°F -1.82°F
201112 - 201202 2.92°F 2.87°F 2.87°F
201212 - 201302 0.82°F 0.84°F 0.82°F
201312 - 201402 -2.09°F -2.22°F -99.99°F
201412 - 201502 0.90°F 0.82°F -99.99°F
201512 - 201602 3.47°F 3.31°F -99.99°F
201612 - 201702 2.52°F 2.42°F -99.99°F