0in

Rain Today

Rain Last Hour
0in

Recorded at Sherman/Denison, Grayson County Airport Updated 33 mins ago (9.6 miles away)

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Real-Time Extremes

Hottest 107.5 °F
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Coldest 30.1 °F
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Windiest 33.3mph
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Wettest (Last Hour) 1in
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Most Humid 100%
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Least Humid 1%
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Highest Pressure 1039.6 hPa
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Lowest Pressure 1001.4 hPa
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Denison Dam Rainfall Forecast

Today 4 Sep
10%
Sat 5 Sep
No Rain
Sun 6 Sep
10%
Mon 7 Sep
No Rain
Tue 8 Sep
No Rain
Wed 9 Sep
No Rain
Thu 10 Sep
5%

Denison Dam Rainfall Statistics

September Rainfall

Sherman/Denison, Grayson County Airport (9.3 miles)

Total Rainfall 2026
23.9in
Daily Average 2026
0.1in
Wettest Day 4 April, 2026
2.3in
Wet Days 2026
34/247 (14%)
Total Rainfall August
0.1in
Daily Average August
0in
Wettest Day 7 August, 2026
0.1in
Wet Days August
1/31 (3%)
Total Rainfall September
0in
Daily Average September
0in
Wettest Day 1 September, 2026
0in
Wet Days September
–

Climate (2021–2025)

Sherman/Denison, Grayson County Airport (9.3 miles)

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Annual Average 2021–2025
22.8in
Monthly Average 2021–2026
2.1in
Daily Average 2021–2026
0.1in
Wettest Day 24 October, 2025
4in

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