Monthly Climatological Summary
Norman 3SE, Cleveland Co., OK (Lat 35^10'57"N, Lon 97^25'27"W, elev 1130)
April 2004
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Temperature Precipitation Snow AM PM
Max Min Water Snow Depth Wx Wx
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01 74.1 40.3 .00 0.0 0 SKC SKC
02 78.3 47.7 .00 0.0 0 SCT BKN
03 70.3 47.7 .00 0.0 0 BKN BKN
04 68.5 45.3 .00 0.0 0 BKN BKN
05 75.0 51.6 T 0.0 0 BKN BKN
06 73.2 52.3 .00 0.0 0 BKN BKN
07 65.8 52.5 .25 0.0 0 -RA RA FG
08 73.2 50.0 .00 0.0 0 FG SCT
09 78.6 51.6 .04 0.0 0 -RA BKN
10 54.1 43.9 .84 T* 0 +TSRA GR -DZ
11 57.2 37.6 .00 0.0 0 BKN BKN
12 61.0 43.9 .00 0.0 0 BKN BKN
13 61.9 36.3 .00 0.0 0 SCT SCT
14 73.0 34.9 .00 0.0 0 SKC FEW
15 79.2 52.2 .00 0.0 0 SKC SCT
16 84.2 59.7 .00 0.0 0 SCT SKC
17 82.9 64.6 .00 0.0 0 BKN BKN
18 75.9 64.2 .00 0.0 0 OVC OVC
19 75.2 63.0 T 0.0 0 BKN -TSRA
20 82.9 62.8 .03 0.0 0 -TSRA BKN
21 82.2 56.5 .09 0.0 0 FG TSRA
22 82.9 61.7 T 0.0 0 SKC -TSRA
23 65.1 57.9 .10 0.0 0 FG TSRA FG
24 70.7 54.1 .03 0.0 0 -TSRA FEW
25 73.4 46.9 .04 0.0 0 FG -SHRA
26 75.7 51.3 .00 0.0 0 SKC SCT
27 82.6 46.9 .00 0.0 0 SCT SCT
28 80.2 57.9 T 0.0 0 BKN -RA
29 80.8 58.1 .06 0.0 0 BKN TSRA
30 67.3 49.6 .61 0.0 0 +TSRA TSRA
KEY TO AM/PM WX: SKC - sky clear, FEW - few clouds, SCT -
partly cloudy, BKN - mostly cloudy, OVC - overcast, RA -
rain, SHRA - rain shower, DZ - drizzle, FG - fog, TSRA -
thunderstorm with rain, GR - hail.
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Means and Totals for April 2004
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Average Maximum Temperature: 73.5
Average Minimum Temperature: 51.4
Mean Temperature: 62.5
Maximum Temperature: 84.2 (4-16-04)
Minimum Temperature: 34.9 (4-14-04)
Days with max temperature 90.0F+: 0 Year: 0
Days with max temperature <32.0F: 0 Year: 2
Days with min temperature <32.0F: 0 Year: 35
Days with min temperature <0.0F: 0 Year: 0
Precipitation: 2.09 Year: 8.99
Greatest one-day precipitation: .84 (4-10-04)
Snowfall: T* Year: T
Greatest one-day snowfall: T* (4-10-04)
Maximum snow depth at midnight: 0
Days with measureable pcpn: 10 Year: 34
Days with pcpn 1.00"+: 0 Year: 2
Days with measureable snowfall: 0 Year: 0
Days with snowfall 1"+: 0 Year: 0
Days with glaze ice: 0 Year: 2
Days with damaging wind: 1 Year: 1
Days with hail: 1 Year: 1
Days with thunderstorms: 9 Year: 13
Days with fog: 5 Year: 13
NOTICE: All temperatures are in degrees Fahrenheit and all precipitation values in inches. Snowfall totals denoted by an asterisk indicate hail.
Summary....April 2004 saw a fair amount of days with rain and thunderstorms in central Oklahoma. The span from the 19th-24th was particularly active as widespread thunderstorms developed all over the state. Most of these storms just missed Norman however, as only .25 inch of rain fell here those six days. A small low pressure center did develop on the backside of some weakening storms on the morning of the 20th, and produced winds strong enough to snap tree limbs and cause scattered power outages. Large amounts of hail fell in Oklahoma City on the 21st. Other storms occurred in the area on the 9th-10th - with small hail occurring here in Norman early on the 10th. There was also a very active lightning display here in Norman from storms on the night of the 29th-30th. Temperatures for the most part were seasonable, although an impressive cold front went through the area on the 12th. Measurable snow occurred in western Oklahoma on the 12th, and our low temperature on the 14th was actually cooler than the lowest temperature recorded here during March.
Turlock CA continued to have a very warm, dry spring. Only .09 inch of rain fell there in April 2004, which brought the season total to 9.83 inches through the end of the month.