Springfield, Illinois1999 Climate Data
North America Region, US
Detailed temperature analysis for 1999 with 364 daily measurements across 12 months.
Avg: 54.1°F
12 Months
364 Records
Year Average
54.1°F
1999
Highest
87.1°F
Lowest
-3.7°F
Range
90.8°F
Monthly Temperature Progression - 1999
32°F
26°F
Jan
37°F
Feb
39°F
Mar
55°F
Apr
65°F
May
72°F
Jun
79°F
Jul
72°F
Aug
65°F
Sep
55°F
Oct
49°F
Nov
34°F
Dec
Below Freezing
|32°F (0°C)|Above Freezing
Monthly Details - 1999
January 1999
Average:25.8°F
Range:-3.7°F - 50.8°F
Days:30 days
Records:30
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February 1999
Average:37.4°F
Range:24.9°F - 59.8°F
Days:28 days
Records:28
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March 1999
Average:38.6°F
Range:24.9°F - 55.9°F
Days:31 days
Records:31
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April 1999
Average:54.7°F
Range:37.6°F - 69.0°F
Days:30 days
Records:30
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May 1999
Average:64.8°F
Range:56.8°F - 73.0°F
Days:31 days
Records:31
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June 1999
Average:72.4°F
Range:59.1°F - 82.7°F
Days:30 days
Records:30
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July 1999
Average:78.9°F
Range:66.0°F - 87.1°F
Days:31 days
Records:31
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August 1999
Average:71.7°F
Range:64.6°F - 78.2°F
Days:31 days
Records:31
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September 1999
Average:64.8°F
Range:51.5°F - 78.9°F
Days:30 days
Records:30
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October 1999
Average:55.0°F
Range:38.9°F - 66.4°F
Days:31 days
Records:31
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November 1999
Average:49.1°F
Range:27.5°F - 65.4°F
Days:30 days
Records:30
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December 1999
Average:34.2°F
Range:13.5°F - 57.4°F
Days:31 days
Records:31
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1999 Climate Summary
The year 1999 in Springfield, Illinois, US was characterized by an average temperature of 54.1°F, with temperatures ranging from a low of -3.7°F to a high of 87.1°F.
Temperature Analysis
- Annual Average: 54.1°F
- Temperature Extremes: 90.8°F range
- Data Coverage: 12 months with available observations
- Total Measurements: 364 daily records
Seasonal Patterns
January25.8°F
February37.4°F
March38.6°F
April54.7°F
... and 8 more months