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May 2013

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This was a cool and wet month for College Station with over 1.5 times normal precipitation falling and temperatures slightly cooler than normal. The majority of the rain that fell came during an event from May 9th to the 10th when a low pressure system centered near Corpus Christi slowly moved off to the east drawing up plenty of moisture into the area while divergence aloft set the stage for impressive rainfall amounts across the Brazos Valley. Record or near record low temperatures were recorded at the beginning of the month when the jet stream arcing into Canada shot down extremely cold air into the area breaking a standing 50 year record low. With the excess of precipitation for the month, Brazos County was downgraded from Severe to Moderate drought from the beginning to the end of the month.

  Daily Temperature Daily Precipitation Monthly Temperature Summary
Day Maximum Minimum *Departure Total Mean Value *Departure
1 86°F 66°F +4°F   Maximum 85.3°F ‑0.5°F
2 72°F 47°F ‑14°F T Minimum 64.4°F ‑2.2°F
3 69°F 43°F ‑17°F   Average 74.8°F ‑1.4°F
4 82°F 42°F ‑11°F   Degree Days Total *Departure
5 73°F 46°F ‑14°F   Heating 24 +22
6 78°F 48°F ‑11°F   Cooling 337 ‑12
7 86°F 54°F ‑4°F   Numberof Days: Total *Departure
8 87°F 62°F +0°F   Maximum ≥ 90°F 9 +2
9 80°F 66°F ‑2°F 3.28" Maximum ≤ 32°F 0 0
10 84°F 67°F +0°F 1.15" Minimum ≤ 32°F 0 0
11 83°F 64°F ‑2°F    
12 81°F 59°F ‑5°F   Monthly Precipitation Summary
13 84°F 53°F ‑8°F   Precipitation Value *Departure
14 85°F 61°F ‑3°F   Monthly Total 6.73" +2.40"
15 79°F 68°F ‑2°F 0.51" Year-to-date Total 16.29" +0.04"
16 86°F 64°F ‑1°F 0.61" Days ≥ 0.01" 6 ‑2
17 91°F 73°F +5°F    
18 93°F 73°F +6°F   Monthly Extremes
19 91°F 73°F +5°F   Extreme Value Date(s)
20 91°F 74°F +6°F   Highest Temperature 94°F 31st
21 89°F 66°F 0°F 1.13" Lowest Temperature 42°F 4th
22 88°F 63°F ‑2°F   Max. 24-hour Precip. 3.41" 9th-10th
23 90°F 74°F +4°F   Maximum Wind Gust 39 mph 2nd
24 88°F 73°F +2°F    
25 83°F 72°F 0°F T Record Book for May
26 89°F 74°F +2°F T Highest Temperature 100°F 1998
27 91°F 72°F +2°F   Lowest Temperature 42°F 2013
28 91°F 73°F +3°F   Highest Minimum 82°F 1988
29 87°F 74°F +2°F 0.05" Lowest Maximum 62°F 1979
30 92°F 76°F +4°F T Wettest Month 14.70" 1929
31 94°F 77°F +6°F   Driest Month 0.11" 1998
  Wettest 24 Hours 6.23" 1983
"T" indicates daily precipitation ≤ 0.005".
BOLDFACE indicates an extreme daily value for the month.
ITALICS indicates a daily record was set or tied.
*Departure from the 1981‑2010 normal.


*New Records Set
Day Parameter Value Old Record Year
3rd Lowest minimum temperature 43°F 45°F 1954
4th **Tied lowest minimum temperature 42°F 42°F 1954
5th Tied lowest minimum temperature 46°F 46°F 1944
6th Tied lowest minimum temperature 48°F 48°F 1917
9th Most daily precipitation 3.28" 2.10" 1936
31st Tied highest minimum temperature 77°F 77°F 1927
**Set record for the entire month.
*Near Records
Day Parameter Value Record Year
2nd 2nd lowest minimum temperature 47°F 46°F 1929
13th Tied 4th lowest minimum temperature 53°F 49°F 1960
18th Tied 3rd highest maximum temperature 93°F 96°F 1925
19th Tied 4th highest minimum temperature 73°F 77°F 1960
*NOTE: Records from 1910 through July 1951 are based on observations taken at the Texas Agricultural
Experiment Station main farm located 7 miles SW of College Station. Records from August 1951 through
the present are based on observations taken at Easterwood Field.


June Normals for College Station
Beginning of the month: 89°F/70°F Monthly precipitation: 4.45"
Middle of the month: 92°F/73°F Precipitation days: 9
End of the month: 93°F/74°F Days ≥ 90°F:  21