Please note, Degree Days are not available for Great Plains, Souther Plains and Gulf Coast, Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.
Base Period
Trend

Filter
Northwest Average Temperature
April
Period
Average Temperature
Rank
(out of 117)
Anomaly
1901-2000 Mean: 43.2ยฐF
April 201138.6ยฐF5-4.6ยฐF
April 201042.0ยฐF42-1.2ยฐF
April 200942.7ยฐF53-0.5ยฐF
April 200839.1ยฐF7-4.1ยฐF
April 200744.2ยฐF731.0ยฐF
April 200644.3ยฐF761.1ยฐF
April 200543.9ยฐF690.7ยฐF
April 200446.7ยฐF1073.5ยฐF
April 200342.2ยฐF44-1.0ยฐF
April 200243.7ยฐF670.5ยฐF
April 200141.7ยฐF38-1.5ยฐF
April 200047.0ยฐF1103.8ยฐF
April 199941.3ยฐF28-1.9ยฐF
April 199843.7ยฐF670.5ยฐF
April 199741.7ยฐF38-1.5ยฐF
April 199644.2ยฐF731.0ยฐF
April 199542.2ยฐF44-1.0ยฐF
April 199446.2ยฐF1033.0ยฐF
April 199342.4ยฐF46-0.8ยฐF
April 199247.1ยฐF1113.9ยฐF
April 199141.9ยฐF41-1.3ยฐF
April 199048.0ยฐF1144.8ยฐF
April 198946.8ยฐF1083.6ยฐF
April 198845.7ยฐF982.5ยฐF
April 198748.5ยฐF1155.3ยฐF
April 198642.6ยฐF51-0.6ยฐF
April 198545.6ยฐF962.4ยฐF
April 198440.8ยฐF22-2.4ยฐF
April 198341.3ยฐF28-1.9ยฐF
April 198239.2ยฐF9-4.0ยฐF
April 198144.0ยฐF700.8ยฐF
April 198045.7ยฐF982.5ยฐF
April 197942.5ยฐF49-0.7ยฐF
April 197842.8ยฐF54-0.4ยฐF
April 197746.4ยฐF1053.2ยฐF
April 197641.4ยฐF32-1.8ยฐF
April 197537.4ยฐF1-5.8ยฐF
April 197442.5ยฐF49-0.7ยฐF
April 197342.4ยฐF46-0.8ยฐF
April 197240.0ยฐF13-3.2ยฐF
April 197141.5ยฐF33-1.7ยฐF
April 197038.1ยฐF2-5.1ยฐF
April 196943.5ยฐF640.3ยฐF
April 196840.6ยฐF17-2.6ยฐF
April 196738.3ยฐF4-4.9ยฐF
April 196643.6ยฐF650.4ยฐF
April 196544.5ยฐF801.3ยฐF
April 196440.4ยฐF14-2.8ยฐF
April 196340.5ยฐF15-2.7ยฐF
April 196246.0ยฐF1002.8ยฐF
April 196142.4ยฐF46-0.8ยฐF
April 196043.4ยฐF620.2ยฐF
April 195944.4ยฐF791.2ยฐF
April 195841.8ยฐF40-1.4ยฐF
April 195743.4ยฐF620.2ยฐF
April 195644.7ยฐF851.5ยฐF
April 195538.1ยฐF2-5.1ยฐF
April 195442.9ยฐF59-0.3ยฐF
April 195341.6ยฐF35-1.6ยฐF
April 195245.2ยฐF942.0ยฐF
April 195144.9ยฐF901.7ยฐF
April 195041.2ยฐF27-2.0ยฐF
April 194946.1ยฐF1022.9ยฐF
April 194840.6ยฐF17-2.6ยฐF
April 194744.7ยฐF851.5ยฐF
April 194644.8ยฐF871.6ยฐF
April 194540.7ยฐF20-2.5ยฐF
April 194442.8ยฐF54-0.4ยฐF
April 194346.7ยฐF1073.5ยฐF
April 194244.9ยฐF901.7ยฐF
April 194144.8ยฐF871.6ยฐF
April 194045.1ยฐF931.9ยฐF
April 193946.4ยฐF1053.2ยฐF
April 193844.2ยฐF731.0ยฐF
April 193741.0ยฐF24-2.2ยฐF
April 193646.1ยฐF1022.9ยฐF
April 193541.6ยฐF35-1.6ยฐF
April 193450.4ยฐF1177.2ยฐF
April 193342.1ยฐF43-1.1ยฐF
April 193243.5ยฐF640.3ยฐF
April 193144.3ยฐF761.1ยฐF
April 193047.6ยฐF1124.4ยฐF
April 192939.6ยฐF12-3.6ยฐF
April 192841.1ยฐF26-2.1ยฐF
April 192741.3ยฐF28-1.9ยฐF
April 192648.9ยฐF1165.7ยฐF
April 192545.4ยฐF952.2ยฐF
April 192442.8ยฐF54-0.4ยฐF
April 192342.8ยฐF54-0.4ยฐF
April 192238.8ยฐF6-4.4ยฐF
April 192140.8ยฐF22-2.4ยฐF
April 192039.3ยฐF10-3.9ยฐF
April 191944.4ยฐF791.2ยฐF
April 191842.6ยฐF51-0.6ยฐF
April 191739.1ยฐF7-4.1ยฐF
April 191643.9ยฐF690.7ยฐF
April 191547.7ยฐF1134.5ยฐF
April 191444.6ยฐF821.4ยฐF
April 191343.0ยฐF60-0.2ยฐF
April 191241.6ยฐF35-1.6ยฐF
April 191141.0ยฐF24-2.2ยฐF
April 191047.0ยฐF1103.8ยฐF
April 190940.7ยฐF20-2.5ยฐF
April 190844.6ยฐF821.4ยฐF
April 190742.8ยฐF54-0.4ยฐF
April 190645.9ยฐF992.7ยฐF
April 190545.0ยฐF921.8ยฐF
April 190444.7ยฐF851.5ยฐF
April 190340.5ยฐF15-2.7ยฐF
April 190241.5ยฐF33-1.7ยฐF
April 190140.6ยฐF17-2.6ยฐF
April 190044.4ยฐF791.2ยฐF
April 189941.3ยฐF28-1.9ยฐF
April 189845.0ยฐF921.8ยฐF
April 189744.9ยฐF901.7ยฐF
April 189639.3ยฐF10-3.9ยฐF
April 189544.3ยฐF761.1ยฐF

Citing This Page