Maps show (left) temperature and (right) precipitation outlooks for February. Odds of wetter than normal conditions are particularly high in far southern Illinois, a region that experienced a very wet February last year. Climate Prediction Center outlooks for February lean to warmer and wetter than normal conditions, as the atmosphere hangs on to the signal of a quickly weakening La Niña (Figure 5). Outlooksįebruary marks the last month of winter, and likely our last chance for significant snowfall, especially in central and southern Illinois. Maps show (left) January snowfall totals (middle) January snowfall departures from normal and (right) winter season to date snowfall departures. Season-to-date snowfall remains above normal in southern Illinois, but 3 to 13 inches below normal in central and northern Illinois (Figure 4). The general lack of sizeable January snowfall added to November and December deficits. Only southern and parts of northeast Illinois had near to above normal snowfall, while the rest of the state had 1 to 6 inches below normal snowfall for the month. January snowfall totals ranged from around 3 inches in southern and south-central Illinois to just under 12 inches in northeast Illinois. The milder January temperatures kept heavy snow at bay for most of the month. Maps show (left) January total precipitation and (right) January precipitation departure from normal. Overall, the preliminary statewide average total January precipitation was 2.72 inches, 0.41 inches above the 1991–2020 average and the 31 st wettest on record statewide. Most parts of northern and southern Illinois were between 0.5 and 2 inches wetter than normal, while much of central Illinois was near to 0.5 inches drier than normal last month (Figure 3).
January’s total precipitation ranged from around 2 inches in west-central Illinois to over 7 inches in far southern Illinois. January is not typically a wet month, but relative to its spring and summer counterparts, this past month brought wetter weather to most of the state. Wetter January, but still not much snowĪugust 2022 was the last month that was wetter than normal statewide. Maps of (left) January average temperature and (right) January average temperature departures from normal. Overall, the preliminary statewide average January temperature was 33.8 degrees, 7.1 degrees above the 1991–2020 average and the sixth warmest on record going back to 1895. The average nighttime low temperature in Peoria in January was the third highest on record. Following long-term warming trends, the nighttime low temperatures last month were particularly unusual. Last month was the fifth warmest January on record in Peoria and Carbondale, the sixth warmest on record in Chicago, and the seventh warmest on record in Moline, Springfield, and St. January average temperatures ranged from the mid-20s in northwest Illinois to the low 40s in southern Illinois, between 5 and 12 degrees above normal (Figure 2). Daily January average temperature departures in OttawaĪlthough temperatures were not warm by any means, they were noticeably milder than expected in the first month of the year. Only three out of 31 January days had below normal temperatures in Ottawa, and each of the first 26 days of the month were warmer than normal. Figure 1 shows daily average temperatures last month in Ottawa. January brought widespread and persistent mild weather, with temperatures regularly 5 to 10 degrees above normal and a few days 15 to 20 degrees above normal. The preliminary statewide average total January precipitation was 2.72 inches, 0.41 inches above the 1991–2020 average and the 31 st wettest on record statewide.ĭata are provisional and may change slightly over time. The preliminary statewide average January temperature was 33.8 degrees, 7.1 degrees above the 1991–2020 average and the 6 th warmest on record going back to 1895.
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