College Station Monthly Summary: September 2009
September 2009 brought much needed rain to Bryan/College Station and for that matter most of the Brazos Valley. Much of the rain fell from the 12th-13th when an upper level low brought organized precipitation to the area for the first time in quite a while. The upper level low was quite persistent, finally ending a streak of six consecutive days of measurable precipitation on the 15th. A strong cold front marched through the area right around the time of the autumnal equinox. Considering the sweltering summer in the Brazos Valley, it was only fitting that the high on the 21st was 94°F, the last full day of summer. The first full day of autumn, the 23rd, saw a high of only 70°F. Overall, maximum temperatures were much cooler than normal with minimum temperatures a bit above normal. A lower spread than normal spread between high and low temperatures indicated a cloudier and wetter than normal pattern. Rainfall was almost twice the normal September monthly total and 11 days in the month had measurable precipitation.
| |
Daily Temperature |
Daily Precipitation |
Monthly Temperature Summary |
| Day |
Maximum |
Minimum |
*Departure |
Total |
Mean |
Value |
*Departure |
| 1 |
93°F |
71°F |
‑1°F |
|
Maximum |
87.3°F |
‑3.6°F |
| 2 |
96°F |
71°F |
+0°F |
|
Minimum |
70.1°F |
+1.6°F |
| 3 |
100°F |
73°F |
+4°F |
T |
Average |
78.7°F |
‑1.0°F |
| 4 |
89°F |
72°F |
‑2°F |
T |
Degree Days |
Total |
*Departure |
| 5 |
92°F |
73°F |
+0°F |
|
Heating |
0 |
0 |
| 6 |
98°F |
72°F |
+3°F |
|
Cooling |
416 |
‑24 |
| 7 |
98°F |
72°F |
+3°F |
|
Numberof Days: |
Total |
*Departure |
| 8 |
96°F |
72°F |
+2°F |
|
Maximum ≥ 90°F |
12 |
‑5 |
| 9 |
88°F |
74°F |
0°F |
0.17" |
Maximum ≤ 32°F |
0 |
0 |
| 10 |
90°F |
73°F |
+0°F |
1.17" |
Minimum ≤ 32°F |
0 |
0 |
| 11 |
87°F |
73°F |
‑1°F |
1.68" |
|
| 12 |
76°F |
73°F |
‑6°F |
0.76" |
Monthly Precipitation Summary |
| 13 |
88°F |
73°F |
+0°F |
0.76" |
Precipitation |
Value |
*Departure |
| 14 |
80°F |
72°F |
‑4°F |
0.03" |
Monthly Total |
7.42" |
+3.51" |
| 15 |
82°F |
72°F |
‑3°F |
|
Year-to-date Total |
24.48" |
‑4.56" |
| 16 |
84°F |
69°F |
‑4°F |
|
Days ≥ 0.01" |
11 |
+3 |
| 17 |
80°F |
71°F |
‑4°F |
0.19" |
|
| 18 |
83°F |
71°F |
‑2°F |
|
Monthly Extremes |
| 19 |
88°F |
70°F |
0°F |
|
Extreme |
Value |
Date(s) |
| 20 |
91°F |
72°F |
+2°F |
|
Highest Temperature |
100°F |
3rd |
| 21 |
94°F |
74°F |
+6°F |
|
Lowest Temperature |
60°F |
23rd, 24th |
| 22 |
79°F |
65°F |
‑6°F |
1.75" |
Max. 24-hour Precip. |
2.37" |
11th-12th |
| 23 |
70°F |
60°F |
‑13°F |
0.20" |
Maximum Wind Gust |
43 mph |
10th |
| 24 |
72°F |
60°F |
‑12°F |
0.37" |
|
| 25 |
85°F |
63°F |
‑3°F |
|
Record Book for September |
| 26 |
88°F |
70°F |
+2°F |
|
Highest Temperature |
112°F |
2000 |
| 27 |
92°F |
70°F |
+4°F |
|
Lowest Temperature |
42°F |
1942 |
| 28 |
93°F |
75°F |
+8°F |
T |
Highest Minimum |
82°F |
1916 |
| 29 |
80°F |
62°F |
‑5°F |
0.34" |
Lowest Maximum |
62°F |
1985 |
| 30 |
87°F |
65°F |
0°F |
|
Wettest Month |
12.13" |
1958 |
| |
Driest Month |
0.00" |
1947 |
| |
Wettest 24 Hours |
6.83" |
1896 |
"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 1971‑2000 normal. |
*New Records Set
| Day |
Parameter |
Value |
Old Record |
Year |
| No new records were set or tied in September 2009. |
*Near Records Set
| Day |
Parameter |
Value |
Record |
Year |
| 12th |
Tied 2nd lowest maximum temperature |
76°F |
76°F |
1998 |
| 23rd |
Tied 2nd lowest maximum temperature |
70°F |
70°F |
1919 |
| 24th |
Tied 3rd lowest maximum temperature |
72°F |
70°F |
1932 |
| 28th |
Tied 3rd highest minimum temperature |
75°F |
78°F |
1959 |
*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. |
October Normals for College Station
| Beginning of the month: |
86°F/64°F |
Monthly precipitation: |
4.22" |
| Middle of the month: |
82°F/59°F |
Precipitation days: |
6 |
| End of the month: |
76°F/54°F |
Days ≥ 90°F: |
3 |
