A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >
Overview & Graphics
2023 finished as one of the top ten warmest years on record for both Chicago and Rockford. This past calendar year also featured below normal precipitation and below to well below normal snowfall across most of the area. |
CoCoRaHS Observer Annual Precipitation Summary
CoCoRaHS Observer Annual Snowfall Summary
Chicago (O'Hare) Daily Temperature Departures from Average in 2023 |
Rockford Daily Temperature Departures from Average in 2023 |
Chicago and Rockford Annual Summary
Public Information Statement National Weather Service Chicago IL 1116 PM CST Tue Jan 2 2024 /1216 AM EST Wed Jan 3 2024/ ...A Look Back at the Climate for the 2023 Calendar Year for Chicago and Rockford... At Chicago, the average high temperature was 62.4 degrees, which is 2.9 degrees above normal. The average low temperature was 45.7 degrees, which is 2.7 degrees above normal. The average temperature was 54.0 degrees, which is 2.8 degrees above normal. 33.73 inches of liquid precipitation were recorded, which is 4.13 inches below normal. 19.8 inches of snow were recorded, which is 18.6 inches below normal. Below is a listing of daily temperature and precipitation records, as well as top ten monthly, seasonal, and yearly temperature and precipitation records that were established for Chicago in 2023... JANUARY -- No daily or top ten monthly records set. FEBRUARY -- * Record daily precipitation of 1.20 inches on the 22nd. ** 8th wettest February on record since 1871 with 3.83 inches of liquid precipitation. MARCH -- No daily or top ten monthly records set. APRIL -- * Record daily maximum temperature of 83 degrees on the 13th. MAY -- * Tied record daily maximum temperature of 87 degrees on the 7th. ** 4th driest May on record since 1871 with 0.71 inches of liquid precipitation. JUNE -- No daily or top ten monthly records set. JULY -- * Record daily precipitation of 3.35 inches on the 2nd. ** 7th wettest July on record since 1871 with 7.61 inches of liquid precipitation. AUGUST -- * Record daily maximum temperature of 98 degrees on the 23rd. * Record daily highest minimum temperature of 77 degrees on the 23rd. * Record daily maximum temperature of 100 degrees on the 24th. SEPTEMBER -- No daily or top ten monthly records set. OCTOBER -- * Record daily maximum temperature of 83 degrees on the 24th. * Record daily highest minimum temperature of 65 degrees on the 26th. ** 10th snowiest October on record since 1884 with 0.9 inches of snow. NOVEMBER -- No daily or top ten monthly records set. DECEMBER -- * Record daily highest minimum temperature of 50 degrees on the 25th. ** 4th warmest December on record since 1872 with a mean average temperature of 39.0 degrees. SEASONAL -- No top ten seasonal records set. YEARLY -- * 3rd warmest year on record since 1873 with a mean average temperature of 54.0 degrees. .................................................................. At Rockford, the average high temperature was 61.4 degrees, which is 2.6 degrees above normal. The average low temperature was 41.2 degrees, which is 1.2 degrees above normal. The average temperature was 51.3 degrees, which is 1.9 degrees above normal. 32.46 inches of liquid precipitation were recorded, which is 4.78 inches below normal. 34.2 inches of snow were recorded, which is 2.9 inches below normal. Below is a listing of daily temperature and precipitation records, as well as top ten monthly, seasonal, and yearly temperature and precipitation records that were established for Rockford in 2023... JANUARY -- * Tied record daily highest minimum temperature of 33 degrees on the 19th. * Record daily snowfall of 4.9 inches on the 28th. FEBRUARY -- * Record daily precipitation of 1.54 inches on the 27th. ** 2nd wettest February on record since 1906 with 3.79 inches of liquid precipitation. MARCH -- No daily or top ten monthly records set. APRIL -- * Record daily snowfall of 0.2 inches on the 22nd. * Tied record daily minimum temperature of 25 degrees on the 26th. MAY -- No daily or top ten monthly records set. JUNE -- * Record daily minimum temperature of 41 degrees on the 12th. JULY -- No daily or top ten monthly records set. AUGUST -- * Tied record daily lowest maximum temperature of 68 degrees on the 14th. * Record daily highest minimum temperature of 78 degrees on the 24th. SEPTEMBER -- No daily or top ten monthly records set. OCTOBER -- * Record daily precipitation of 2.71 inches on the 13th. * Record daily maximum temperature of 81 degrees on the 24th. * Record daily highest minimum temperature of 59 degrees on the 25th. * Record daily highest minimum temperature of 61 degrees on the 26th. NOVEMBER -- No daily or top ten monthly records set. DECEMBER -- * Record daily highest minimum temperature of 42 degrees on the 8th. * Tied record daily highest minimum temperature of 40 degrees on the 16th. * Record daily highest minimum temperature of 47 degrees on the 24th. * Record daily highest minimum temperature of 45 degrees on the 25th. ** 2nd warmest December on record since 1905 with a mean average temperature of 36.3 degrees. SEASONAL -- * Tied 9th snowiest spring on record since 1906 with 15.0 inches of snow. YEARLY -- * Tied 9th warmest year on record since 1906 with a mean average temperature of 51.3 degrees. $$
Events
NWS Chicago Science and Past Events Page