Rolla, CO
Unincorporated community in Adams County, Colorado
Rolla is a small unincorporated community in Adams County, Colorado. It is 2.4 miles SW of Derby, the nearest town. Its ZIP code is 80640.
Rolla at a glance
- State
- Colorado
- County
- Adams County
- ZIP code
- 80640
- Nearest town
- Derby (2.4 mi)
- Time zone
- America/Denver
- Coordinates
- 39.8692, -104.8908
Weather in Rolla now
Loading the National Weather Service forecast…
Rolla weather by the hour
Rolla weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Rolla.
This week in Rolla
Sunrise, sunset and moon in Rolla
What is the weather usually like in Rolla?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 90°F average high
- Januarycoldest month · 16°F average low
- 14.1 inprecipitation per year · 359 mm
- 34.5 insnowfall per year · 88 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Rolla: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station BRIGHTON 3 SE, CO US (USC00050950), adjusted for the elevation of Rolla.
Rolla weather month by month
Sunrise and sunset in Rolla through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:17 AM | 5:00 PM | 9 h 43 min |
| February | 6:50 AM | 5:37 PM | 10 h 46 min |
| March | 7:09 AM | 7:07 PM | 11 h 58 min |
| April | 6:19 AM | 7:39 PM | 13 h 19 min |
| May | 5:42 AM | 8:09 PM | 14 h 26 min |
| June | 5:28 AM | 8:31 PM | 15 h 2 min |
| July | 5:42 AM | 8:28 PM | 14 h 46 min |
| August | 6:10 AM | 7:57 PM | 13 h 47 min |
| September | 6:39 AM | 7:09 PM | 12 h 30 min |
| October | 7:08 AM | 6:21 PM | 11 h 12 min |
| November | 6:43 AM | 4:45 PM | 10 h 1 min |
| December | 7:12 AM | 4:37 PM | 9 h 24 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Rolla?
Rolla has a cold semi-arid climate. The warmest month is July, with an average high of 90°F (32°C), and the coldest is January, with average lows of 16°F (-9°C).
It gets about 14.1 inches (359 mm) of precipitation a year. The wettest month is May and the driest is December. Snow is common: about 35 inches fall in an average year.
The best time to visit Rolla is May–June and August–September. 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 Rolla
The closest live webcam is Berkley › North-west: Downtown Denver, 7.0 miles SW of Rolla.
Webcams: Windy.com. Distances in a straight line from Rolla.
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Map of Rolla, CO
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Rolla Street View
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Open in Google Maps ›Towns near Rolla
Other communities near Rolla
Questions about Rolla
Where is Rolla, CO?
Rolla is an unincorporated community in Adams County, Colorado, 2.4 miles SW of Derby.
What county is Rolla in?
Rolla is in Adams County, Colorado.
What is the ZIP code of Rolla, CO?
The ZIP code for Rolla is 80640.
What is the nearest town to Rolla?
Derby, 2.4 miles away.
Are there webcams near Rolla?
Yes. The closest is Berkley › North-west: Downtown Denver, 7.0 miles away.
What is the hottest month in Rolla?
July, with an average high of 90°F (32°C).
What is the coldest month in Rolla?
January, with an average low of 16°F (-9°C).
How much does it rain in Rolla?
About 14.1 inches (359 mm) a year; the wettest month is May.
Does it snow in Rolla?
Yes, about 35 inches of snow fall in an average year.
When is the best time to visit Rolla?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Rolla have?
Cold semi-arid (Köppen BSk).
Last updated: