Posted: 10:12 PM 11/8/12
Updated: 10:47 PM 11/15/12
The month of October 2012 got off to a clouds start with a few showers in the evening of the first over east central Illinois. The same system that was parked over the Midwest brought more rain for the 2nd (Tuesday) and the 3rd (Wednesday).
Thursday the 4th was a sunnier day with highs in the upper 70s and lower 80s. However, the nicer weather wouldn't stick around. Friday, the 5th was a dreary and wet day. Temperatures only made it into the lower 50s and the highs were in the morning.
The dreary weather led to a chilly weekend for the 6th and the 7th. High temperatures only jumped into the lower 50s both days and both mornings started with some frost. Even Monday had some frost with some upper 20s being noted.
Highs jumped back into the upper 50s for Monday the 8th and our frost threat was gone. The warming trend continued into Tuesday the 9th with highs in the upper 60s and breezy conditions. A weak cold front brought some light overnight showers before the 10th, which was cooler with highs in the middle 50s. The rain was clear of the area by the morning and the day was mostly sunny.
Thursday and Friday were both mostly sunny and warm days. Over the weekend though, quite a bit of rain fell in central Illinois. Sunday was especially awful because of a 35 mph wind that stuck around the entire day.
We went back to the dry and warmer weather for the 15th and 16th. Both days were sunny with highs in the 60 on the 15 and in the 70s on the 16th. The 17th was also warm and breezy, but the afternoon brought thunderstorms that were non severe, but brought rain. More rain arrived in the evening hours of the 18th and hug around through Friday the 19th. The rain on the 19th was a bit isolated and temperatures were down in the 60s.
Our weekend was mostly sunny and pretty calm with hgihs in the 50s on Saturday and into the 70s by Sunday. That was just the beginning of a warm-up. Though temperatures on Monday the 22nd were held down because of some thunderstorms and we only made it into the 70s on Tuesday because of morning storms. However, the next two days saw 80 degree weather with mostly sunny skies and breezy conditions.
By the evening of the 25th, the chill way already in the air. Temperatures quickly dropped into the 50s for highs with overnight lows near 30s for through the middle of the next week. This brought us many rounds of frosts or temperatures at least near freezing. There were also a few breezy days that took us to the end of the month.
Below is a look at the final numbers for a few cities around our area.
On average, the State of Illinois was cooler and wetter than normal. The statewide average for rainfall was 3.94", which is 0.68" above normal. The majority of the rain fell between Quincy and Champaign. This went a long way in pulling most of central Illinois out of a drought. Average temperatures were 52.2 degrees, which were 1.9 degrees below normal.
The National average temperature was 53.9 degrees, which is 0.3 degrees below the long term average. This ends a 16 month streak of above average temperatures for the lower 48. That streak started in June 2011.
Precipitation averaged at 2.19 inches, which is just slightly above the long term average. The Northwest, Midwest, and Northeast were all above normal, helped out mostly by once Hurricanes Isaac and Sandy. At the end of the month, 60.2% of the lower 49 were experiencing drought conditions. The most severe was in the great plains.
You can see a map of the climate highlights with this link. You can also read the whole report here.
October 2012 was the fifth warmest on record, making this the 36th consecutive October and 332nd consecutive month with a global temperature above the 20th century average. You can see the climate highlights with this link and read the whole report here.
An interesting note in the report regards sea ice. The northern hemisphere snow cover extent was the eight largest monthly extent in the 45 year period of record. The North American snow cover extent was the 7th largest on record. October is the first month of the annual growth cycle for the Arctic ice and this October the Arctic sea ice doubled in size. This was after the smallest ice cap ever in September.