Dallam, TX
Unincorporated community in Grimes County, Texas
Dallam is a small unincorporated community in Grimes County, Texas. It is 7.9 miles E of Navasota, the nearest town. Its ZIP code is 77866.
Dallam at a glance
- State
- Texas
- County
- Grimes County
- ZIP code
- 77866
- Nearest town
- Navasota (7.9 mi)
- Time zone
- America/Chicago
- Coordinates
- 30.4200, -96.2161
Weather in Dallam now
Loading the National Weather Service forecast…
Dallam weather by the hour
Dallam weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Dallam.
This week in Dallam
Sunrise, sunset and moon in Dallam
What is the weather usually like in Dallam?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 96°F average high
- Januarycoldest month · 38°F average low
- 44.2 inprecipitation per year · 1,122 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Dallam: March–April and October–November, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station WASHINGTON SP, TX US (USC00419491), adjusted for the elevation of Dallam.
Dallam weather month by month
Sunrise and sunset in Dallam through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:20 AM | 5:47 PM | 10 h 26 min |
| February | 7:03 AM | 6:14 PM | 11 h 10 min |
| March | 7:33 AM | 7:34 PM | 12 h 1 min |
| April | 6:55 AM | 7:53 PM | 12 h 57 min |
| May | 6:29 AM | 8:13 PM | 13 h 44 min |
| June | 6:21 AM | 8:29 PM | 14 h 8 min |
| July | 6:31 AM | 8:29 PM | 13 h 57 min |
| August | 6:50 AM | 8:07 PM | 13 h 17 min |
| September | 7:08 AM | 7:31 PM | 12 h 23 min |
| October | 7:26 AM | 6:55 PM | 11 h 29 min |
| November | 6:49 AM | 5:29 PM | 10 h 39 min |
| December | 7:12 AM | 5:27 PM | 10 h 14 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Dallam?
Dallam has a humid subtropical climate. The warmest month is August, with an average high of 96°F (36°C), and the coldest is January, with average lows of 38°F (4°C).
It gets about 44.2 inches (1,122 mm) of precipitation a year. The wettest month is May and the driest is July.
The best time to visit Dallam is March–April and October–November. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Dallam
The closest live webcam is College Station › East: SH6@WD Fitch, 9.9 miles N of Dallam.
Webcams: Windy.com. Distances in a straight line from Dallam.
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Map of Dallam, TX
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Dallam Street View
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Open in Google Maps ›Towns near Dallam
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Questions about Dallam
Where is Dallam, TX?
Dallam is an unincorporated community in Grimes County, Texas, 7.9 miles E of Navasota.
What county is Dallam in?
Dallam is in Grimes County, Texas.
What is the ZIP code of Dallam, TX?
The ZIP code for Dallam is 77866.
What is the nearest town to Dallam?
Navasota, 7.9 miles away.
Are there webcams near Dallam?
Yes. The closest is College Station › East: SH6@WD Fitch, 9.9 miles away.
What is the hottest month in Dallam?
August, with an average high of 96°F (36°C).
What is the coldest month in Dallam?
January, with an average low of 38°F (4°C).
How much does it rain in Dallam?
About 44.2 inches (1,122 mm) a year; the wettest month is May.
Does it snow in Dallam?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Dallam?
March–April and October–November, when temperatures are most pleasant and rainy days are fewer.
What climate does Dallam have?
Humid subtropical (Köppen Cfa).
Last updated: