November 2010 Central Indiana Climate Summary

35th Warmest on record at Indianapolis
32nd Wettest on record at Indianapolis
November 2010 brought some much needed relief to the drought across central Indiana.  Although high pressure allowed mostly dry conditions to continue through the first third of the month, the remainder of November was a different story.  A series of low pressure systems tracked northeastward across the Great Lakes and Ohio Valley regions, bringing multiple rounds of widespread precipitation to the area along with large fluctuations in temperatures.


The month started out with mostly below normal temperatures during the first week as a large upper level trough moved eastward across the region.  Highs stayed mostly in the 50s and 40s.  A significant warm-up occurred from the 8th through the 13th as highs climbed to well above normal and ranged from the low to mid 70s.  A strong cold front passed through the area during the night of the 13th, which again ushered in below normal temperatures to the region.  Lows ranging from the 20s to low 30s and highs in the 40s to low 50s persisted through the 20th.  Central Indiana experienced a short-lived warm up from the 21st to 23rd as a developing area of low pressure over the Central Plains tracked northeastward across the Great Lakes.  This allowed for highs ranging from the upper 50s to near 70 before the associated cold front brought a short cool-down.  Another low pressure system quickly followed taking a similar track as the associated warm front allowed for highs in the mid 50s to 60s on the 25th.  After the associated cold front passed, the area was left with highs only in the mid 30s on the 26th and lows dipping down into the low 20s.  High temperatures gradually warmed up to the mid 50s toward the end of the month as southerly flow on the back side of a high pressure system influenced the area.  A cold front passage on the 30th looked to bring a chilly start for December across central Indiana.
November 2010 Avg Temp
November 2010 Difference from Normal
Lowest Temperature
74 on 11
21 on 26
76 on 11
21 on 19 and 28
75 on 11
21 on 28
Terre Haute
75 on 11
20 on 26 and 28
75 on 11
19 on 6 and 28
74 on 11
20 on 27 and 28
Indy – Eagle Crk.
74 on 11
20 on 28

At Indianapolis, there were 16 days with below normal temperatures and 14 days with above normal temperatures.

November 2010 was the 35th warmest in the Indianapolis area since 1871.


November 2010 was the wettest month since June for much of central and southern Indiana.  Monthly precipitation totals ranged from 2.25 inches in northwest Indiana to nearly 10 inches in southwest Indiana. This was 50 percent of normal across portions of northwest and west central Indiana and slightly over 200 percent of normal in portions of southern Indiana.  All of Indiana south and east of a line from Terre Haute to Berne received more than four inches of rain during November.
Almost all of November’s precipitation in central and southern Indiana occurred from November 13th through November 30th.  The most significant rainfall of the month occurred from the 24th-25th when central and southern Indiana received 1.50 to more than 5 inches.  The highest rainfall totals occurred in southwest Indiana.
Snowfall occurred during November on the 5th, 24th, 25th, and 30th with amounts ranging from a trace to 0.3 inches.
Drought conditions began to improve in the state after the 12th.  A total of one half to two inches of rainfall occurred south and east of a line from Evansville to Fort Wayne from the 13th through the 17th.  Drought conditions were eliminated in southern Indiana following three to eight inches of rainfall along and south of Interstate 70 from the 22nd through the 30th.  Portions of west central and northern Indiana remained on the dry side at the close of November.
Streamflow increased greatly following the rains during the last week of November.  On the last day of the month, streamflow was above normal in most areas.  Geist and Morse reservoirs returned to normal levels, but Monroe Lake and Eagle Creek reservoir remained two and four feet below normal, respectively.
November 2010 Precipitation
November 2010 Difference from Normal
Wettest Day
Longest Dry Stretch
1.56 on 24-25
 7 days 6-12
1.85 on 24-25
 8 days 5-12
 and 14-21
1.70 on 24-25
 7 days 6-12
Terre Haute
1.62 on 24-25
 7 days 6-12
2.22 on 24-25
 7 days 6-12
1.95 on 24-25
12 days 1-12
Indy – Eagle Crk.
1.51 on 24-25
 7 days 6-12
November 2010 was the 32nd wettest in the Indianapolis area since 1871.
Severe Weather
A widespread line of storms associated with a strong cold front tracked eastward across central Indiana late on the 22nd and the early morning of the 23rd.  Only one report of wind damage resulted from these storms in the southern portion of the area.  A second round of storms that produced some wind damage occurred during the early morning of the 25th.  These storms were ahead of a cold front which slowly passed through the area later in the day.

For information on severe weather in other areas during November, visit the Storm Prediction Center “Severe Weather Event Summaries” website at
The maximum wind gust at Indianapolis International Airport was 49 mph out of the west on the 22nd and 23rd as a line of storms associated with a strong cold front tracked eastward across the area.  Fog or haze was reported at Indianapolis on 17 days during the month.  Thunder was reported on two days during the month.
December 2010 Outlook
The official outlook for December 2010 from the Climate Prediction Center indicates an equal chance of near, above, or below normal temperatures for central Indiana.  At Indianapolis, the average temperature for the month is 31.6 degrees.  The outlook calls for an equal chance of near, above, or below normal precipitation.  The average precipitation for December at Indianapolis is 3.03 inches and 6.4 inches of snowfall.
Data prepared by the Indianapolis Forecast Office.

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