Omaha, NE, November 2009 Weather and Climate Data  



Climate News:  "November 2009 was warmer than October 2009 in Omaha, NE"

No, that's not a mis-print. 

The average high temperature in November 2009 in Omaha, NE, was 56.3 F
The average high temperature in October 2009 in Omaha, NE, was 55.0 F

November 2009 high temperatures in Omaha averaged 1.3 F warmer than October 2009!

How rare is this to have November be warmer than October in Omaha, NE?  Very rare. 

In fact, this has never occurred even once before in the 139 years of data (1871-2009) for Omaha.

Contrast November 2009 with 1947 in Omaha when November 1947 high temperatures were 32.4 F degrees colder than the average high temperatures in the previous month of October 1947!

The mean temperature (the average of the daily high AND low temperatures) for November 2009 (45.7 F) was slightly cooler than October 2009 (46.8 F).  So it was not the daily mean temperatures (average of the daily highs and lows) or the daily low temperatures but instead, the daily high temperatures that were so unusual when comparing November 2009 to October 2009.

Here are some more interesting comparisons between October and November 2009 showing the fact that November was warmer than October in Omaha:

Number of high temperatures >= 70 F
October 2009:  2 days
November 2009:   3 days

Number of High temperatures >= 55 F
October 2009:  16 days
November 2009:  17 days

Number of High temperatures >= 50 F
October 2009:  21 days
November 2009:  22 days

Highest temperature:
October 2009:  72 F
November 2009:  75 F

It would be nice to continue this trend into December, but that is highly unlikely!

Applied Climate Science 
School of Natural Resources