Georgetown, Colorado climate: Normal weather by month, frost dates and records
Georgetown's normal year runs from 16°F January nights to 77°F July afternoons, with 18.3 inches of precipitation and 106 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 5.7°C, January lows of −9°C, July highs of 25°C, 465 mm of precipitation a year.
- NOAA stationGeorgetown
- Station IDUSC00053261
- Location39.71°N 105.70°W
- Elevation8,520 ft (2,597 m)
- Population1,257
On October 23, the normal high in Georgetown is 54°F and the normal low 28°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Georgetown.
- Jan 36° 16°
- Feb 38° 15°
- Mar 45° 21°
- Apr 50° 26°
- May 60° 35°
- Jun 72° 42°
- Jul 77° 49°
- Aug 75° 47°
- Sep 68° 39°
- Oct 57° 30°
- Nov 44° 22°
- Dec 36° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Georgetown each month?
July is the warmest month, with normal highs of 77°F; January the coldest, with normal lows of 16°F. The most precipitation falls in July (2.49 in), the least in January (0.81 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 16°F | 25.9°F | 0.81 | 12.5 | 9 | <1 | 31 | 9 h 40 min |
| February | 38°F | 15°F | 26.5°F | 0.90 | 12.6 | 9 | <1 | 28 | 10 h 40 min |
| March | 45°F | 21°F | 32.8°F | 1.39 | 18.5 | 11 | <1 | 30 | 11 h 50 min |
| April | 50°F | 26°F | 37.9°F | 2.33 | 20.9 | 12 | <1 | 26 | 13 h 10 min |
| May | 60°F | 35°F | 47.1°F | 2.13 | 6.6 | 10 | <1 | 13 | 14 h 20 min |
| June | 72°F | 42°F | 57.0°F | 1.54 | 0.2 | 10 | <1 | 1 | 15 h |
| July | 77°F | 49°F | 62.9°F | 2.49 | 0.0 | 13 | <1 | <1 | 14 h 40 min |
| August | 75°F | 47°F | 60.5°F | 2.18 | 0.0 | 14 | <1 | <1 | 13 h 50 min |
| September | 68°F | 39°F | 53.8°F | 1.52 | 1.6 | 10 | <1 | 5 | 12 h 30 min |
| October | 57°F | 30°F | 43.5°F | 1.25 | 7.5 | 8 | <1 | 19 | 11 h 10 min |
| November | 44°F | 22°F | 33.0°F | 0.89 | 11.1 | 7 | <1 | 28 | 10 h |
| December | 36°F | 15°F | 25.9°F | 0.86 | 14.4 | 9 | <1 | 31 | 9 h 20 min |
| Year (annual) | 55°F | 30°F | 42.2°F | 18.29 | 105.9 | 120 | <1 | 210 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −9°C | −3.4°C | 21 mm | 32 cm |
| February | 3°C | −9°C | −3.1°C | 23 mm | 32 cm |
| March | 7°C | −6°C | 0.4°C | 35 mm | 47 cm |
| April | 10°C | −3°C | 3.3°C | 59 mm | 53 cm |
| May | 15°C | 1°C | 8.4°C | 54 mm | 17 cm |
| June | 22°C | 6°C | 13.9°C | 39 mm | 1 cm |
| July | 25°C | 9°C | 17.2°C | 63 mm | 0 cm |
| August | 24°C | 8°C | 15.8°C | 55 mm | 0 cm |
| September | 20°C | 4°C | 12.1°C | 39 mm | 4 cm |
| October | 14°C | −1°C | 6.4°C | 32 mm | 19 cm |
| November | 7°C | −6°C | 0.6°C | 23 mm | 28 cm |
| December | 2°C | −9°C | −3.4°C | 22 mm | 37 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053261; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Georgetown?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, June has the fewest days with rain (10).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053261.
When is the last frost in Georgetown?
In Georgetown, the last spring frost (32°F) comes after May 30 in half of years and after June 14 in one year in ten; the first autumn frost comes before September 19 in half of years and before September 5 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 301 year in 10 after June 14; 9 in 10 after May 17
- First autumn frost, half of years before
- September 191 year in 10 before September 5; 9 in 10 before September 30
NOAA puts the median frost-free season at 112 days, and the season without a hard freeze (28°F) at 137 days.
A hard freeze (28°F) comes after May 15 in half of springs and before September 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Georgetown in zone 5b in ZIP code 80452, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Georgetown's NOAA station is in zone 5b: the coldest night of a typical year reaches −10°F (24 complete years).
Frost dates for every NOAA station in Colorado · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00053261; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Georgetown?
In a normal year in Georgetown, a 90°F day is rare, 210 nights fall to 32°F or colder and 120 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 210a normal year
- Days that stay below freezing
- 39high of 32°F or less
- Days with 0.01 inch of precipitation
- 120a normal year
- Days with 1 inch of snow or more
- 31a normal year
The highest temperature in this station's record (since 1893) is 92°F, on June 23, 1954; the lowest is −26°F, on January 10, 1962.
The wettest calendar year on that record is 1995, with 24.54 in; the snowiest season is 2006–07, with 162.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00053261; records: ACIS (NOAA Regional Climate Centers), station USC00053261. Records use complete months only; a month missing more than three days is left out.
How sunny is Georgetown?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Georgetown, 4.7 kWh per square metre a day. February is the sunniest month (82%) and May the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 81% | 2.7 |
| February | 82% | 3.8 |
| March | 79% | 4.9 |
| April | 73% | 5.6 |
| May | 71% | 6.2 |
| June | 78% | 7.0 |
| July | 75% | 6.4 |
| August | 75% | 5.8 |
| September | 81% | 5.2 |
| October | 80% | 3.9 |
| November | 79% | 2.8 |
| December | 79% | 2.4 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Georgetown need?
A normal year in Georgetown brings 8,312 heating degree days, 55% more than the median U.S. place (5,373), and 41 cooling degree days, 96% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,197 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,211 | 0 |
| February | 1,078 | 0 |
| March | 998 | 0 |
| April | 813 | 0 |
| May | 555 | 0 |
| June | 244 | 6 |
| July | 89 | 25 |
| August | 149 | 10 |
| September | 336 | 0 |
| October | 667 | 0 |
| November | 959 | 0 |
| December | 1,214 | 0 |
| Year (annual) | 8,312 | 41 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053261. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Georgetown been warmer than normal lately?
2025 averaged 44.3°F, 2.1°F above the 1991-2020 normal of 42.2°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 43.3°F | +1.1°F | 16.50 | 90.0 |
| 2022 | 41.7°F | −0.5°F | 20.47 | 101.5 |
| 2023 | 41.6°F | −0.6°F | 17.21 | 72.0 |
| 2024 | 43.9°F | +1.7°F | 15.27 | 124.6 |
| 2025 | 44.3°F | +2.1°F | 15.51 | 85.8 |
Source: observed years: ACIS, station USC00053261. A year counts only with all twelve months complete.
How does Georgetown's climate compare?
Georgetown is warmer than 23 of the other 124 places with their own NOAA record in Colorado, and wetter than 95. Across the 7,247 U.S. stations with normals, its annual mean of 42.2°F is warmer than 10%.
In the Köppen classification computed from these normals, Georgetown is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Georgetown share this climate record?
5 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Idaho Springs, CO1,699 people · 11 mi E
- Downieville-Lawson-Dumont, CO478 people · 7 mi NE
- Empire, CO324 people · 4 mi N
- Silver Plume, CO188 people · 2 mi SW
- St. Mary's, CO130 people · 8 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Georgetown's climate
What is the coldest month in Georgetown?
January, with a normal high of 36°F and a normal low of 16°F. The warmest is July (77°F by day, 49°F at night).
Does it snow in Georgetown?
Yes: 106 inches in a normal year, falling on 61 days with 0.1 inch or more, the most in April (20.9 inches).
What is the rainiest month in Georgetown?
July, with 2.49 in of precipitation in a normal year; the driest is January with 0.81 in.
What plant hardiness zone is Georgetown in?
The USDA's 2023 map puts Georgetown in zone 5b in ZIP code 80452, the nearest ZIP area. By the same method at Georgetown's NOAA station, the coldest night of a typical year reaches −10°F (24 years, 1991-2020): zone 5b.
How late can frost come in Georgetown?
In half of years the last 32°F night comes after May 30; in one year in ten it comes after June 14. Waiting until June 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Cabin Creek, CO4 miles from this station, 37.5°F a year
- Grant, CO17 miles from this station, 38.7°F a year
- Fraser, CO17 miles from this station, 36.0°F a year
- Dillon, CO19 miles from this station, 35.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made