Monthly Climatological Summary
Norman 3SE, Cleveland Co., OK (Lat 35^10'57"N, Lon 97^25'27"W, elev 1130)
July 2001
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Temperature Precipitation Snow AM PM
Max Min Water Snow Depth Wx Wx
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01 90.3 70.0 .00 0.0 0 SCT BKN
02 89.2 69.6 .00 0.0 0 BKN BKN
03 94.1 70.0 .00 0.0 0 BKN BKN
04 98.1 71.4 .00 0.0 0 SKC SCT
05 97.9 73.2 .00 0.0 0 BKN BKN
06 98.4 73.0 .00 0.0 0 FEW SCT
07 98.6 73.2 .00 0.0 0 BKN BKN
08 98.2 74.5 .00 0.0 0 SCT SCT
09 99.7 72.9 .00 0.0 0 SKC SCT
10 100.0 73.6 .00 0.0 0 SCT SCT
11 100.8 74.3 .00 0.0 0 SKC SKC
12 104.0 75.9 .00 0.0 0 SKC SCT
13 84.6 75.7 .00 0.0 0 OVC BKN
14 82.6 68.9 .00 0.0 0 OVC BKN
15 93.0 67.5 .03 0.0 0 -SHRA SCT
16 99.7 75.4 .00 0.0 0 BKN BKN
17 100.8 78.6 .00 0.0 0 SCT SCT
18 100.8 76.5 .00 0.0 0 SKC SCT
19 99.1 75.6 .00 0.0 0 SCT SCT
20 100.0 73.4 .00 0.0 0 FEW SCT
21 102.7 77.2 .00 0.0 0 SCT SCT
22 102.9 76.8 .00 0.0 0 SCT SCT
23 101.8 75.2 .00 0.0 0 SCT SCT
24 100.8 77.2 .00 0.0 0 SCT SCT
25 100.8 76.1 .00 0.0 0 SCT SCT
26 100.0 75.9 .00 0.0 0 BKN BKN
27 99.7 76.5 .00 0.0 0 SCT SCT
28 100.8 72.5 .92 0.0 0 SCT +TSRA
29 97.7 73.2 T 0.0 0 -TSRA SCT
30 99.7 77.2 .00 0.0 0 SCT SCT
31 97.5 77.0 .00 0.0 0 SCT FEW
KEY TO AM/PM WX: SKC - sky clear, FEW - few clouds, SCT -
partly cloudy, BKN - mostly cloudy, OVC - overcast, SHRA -
rain shower, TSRA - thunderstorm with rain.
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Means and Totals for July 2001
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Average Maximum Temperature: 97.9
Average Minimum Temperature: 74.1
Mean Temperature: 86.0
Maximum Temperature: 104.0 (7-12-01)
Minimum Temperature: 67.5 (7-15-01)
Days with max temperature 90.0F+: 28 Year: 48
Days with max temperature <32.0F: 0 Year: 3
Days with min temperature <32.0F: 0 Year: 39
Days with min temperature <0.0F: 0 Year: 0
Precipitation: .95 Year: 15.24
Greatest one-day precipitation: .92 (7-28-01)
Snowfall: 0.0 Year: 1.5
Greatest one-day snowfall: 0.0
Maximum snow depth at midnight: 0
Days with measureable pcpn: 2 Year: 45
Days with pcpn 1.00"+: 0 Year: 4
Days with measureable snowfall: 0 Year: 1
Days with snowfall 1"+: 0 Year: 1
Days with glaze ice: 0 Year: 5
Days with damaging wind: 0 Year: 8
Days with hail: 0 Year: 2
Days with thunderstorms: 2 Year: 32
Days with fog: 0 Year: 13
NOTICE: All temperatures are in degrees Fahrenheit and all precipitation values in inches. Snowfall totals denoted by an asterisk indicate hail.
Summary....July 2001 was proof that Oklahoma can get monotonous weather as well. A strong upper-level high pressure system built into the area on the 4th, sending temperatures in the day into the upper 90s and low 100s and keeping temperatures at night in the mid 70s almost every day this month. The only break came following a cool frontal passage on the 13th, which was followed by low overcast and scattered showers from the 13th-15th (coincidentally the same three days my family was visiting me.) Precipitation was very scarce in central Oklahoma all month, with nearly all of the month's rainfall coming during an evening thunderstorm on the 28th.
The 2001-02 rainy season got off to an early start in Turlock CA, as .07 inch fell there on the 7th. This was only the 4th time measureable rain had fallen there in July since 1987. The .07 inch total also equals the cumulative rainfall total from the previous fourteen Julys (that is, if you add all of the rainfall Turlock measured in July from 1987 to 2000 - that total comes to .07 inch).