25.6

47.7

72.3

50.2

49.0

0.58

2.38

3.09

1.45

22.47

25.7

47.4

73.1

50.9

49.3

0.62

2.27

2.96

1.29

21.37

25.5

47.1

72.1

50.4

48.8

0.59

2.26

3.30

1.40

22.63

24.8

47.3

72.2

50.1

48.6

0.56

2.35

3.13

1.38

22.27

24.8

48.0

72.0

49.8

48.6

0.55

2.46

3.10

1.52

22.90

25.7

48.2

71.8

49.5

48.8

0.55

2.60

3.11

1.60

23.60

Source: National Oceanic and Atmospheric Administration, National Climatic Data Center, Area-Weighted State, Regional, and National Monthly and Seasonal Temp. and Precip. 1971-2000 (and previous normals periods),  (HCS 4-1;2;3), 2003.

by Nebraska Databook

1 " . . . the official climate normals computed for U.S. stations by NCDC consist of the arithmetic average of a meteorological element over 30 years.  The 'official' normals are provided solely by NCDC, which should be noted in light of other non-official means computations from a myriad of sources."  Source: National Climatic Data Center, Web site, December 2003.