Gallatin County Klima and Average Vejr
Klima of Gallatin County: average temperatures, rainfall and seasons month by month.
Klima in Gallatin County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | 0° | -10° | 20 mm | ★★☆☆☆ |
| februar | 1° | -9° | 41 mm | ★★☆☆☆ |
| marts | 9° | -3° | 44 mm | ★★★☆☆ |
| april | 12° | -1° | 70 mm | ★★★☆☆ |
| maj | 16° | 3° | 80 mm | ★★★★☆ |
| juni | 21° | 7° | 51 mm | ★★★★☆ |
| juli | 28° | 13° | 12 mm | ★★★★★ |
| august | 27° | 11° | 9 mm | ★★★★★ |
| september | 22° | 8° | 35 mm | ★★★★☆ |
| oktober | 13° | 1° | 47 mm | ★★★☆☆ |
| november | 6° | -4° | 26 mm | ★★★☆☆ |
| december | 4° | -5° | 36 mm | ★★☆☆☆ |
Klima type: Subarctic. Kilde: Open-Meteo archive (ERA5).
Recent extremes in Gallatin County
Højest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Gallatin County compares med nearby places
Annual averages, and the difference against Gallatin County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Bozeman | 0 km | 7°C | about the same | 471 mm |
| Missouri River | 127 km | 8°C | +1°C warmer | 396 mm |
| Yellowstone (UNESCO World Heritage Site) | 143 km | 2°C | 5°C cooler | 639 mm |
| Yellowstone National Park | 143 km | 2°C | 5°C cooler | 639 mm |
| Grand Teton National Park | 212 km | 4°C | 3°C cooler | 756 mm |
Bedste rejsetid Gallatin County
Go in juni, juli and august. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and december - expect the least comfortable mix of heat, cold or rain.
What this means for Gallatin County
Today is about average for september. The forecast high of 21°C is in line med the 22°C typical for this month.
Regn is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni og august.
The gap between the warmest and coldest month averages 25°C.
What og pack, what og skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sønglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 25°C, so mornings feel nothing like afternoons
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid januar, februar and december - historically the least comfortable months here.
Resumé
Gallatin County is a county in mantana. Gallatin County is a county in the United States. Der bor omkring 125.000.
Lige nu er det 5°C (40°F) in Gallatin County med delvist skyet. Det føles som 1°C. I dag ligger temperaturen mellem 4°C og 21°C. Sandsynligheden for nedbør er 2%. Sightseeing conditions score 7.7/10 - gode forhold.
Det bedste tidspunkt at besøge Gallatin County is juni, juli and august. Klimaet er subarctic. januar, februar and december tend og be the least comfortable months. juli is the warmest month med average highs near 28°C, while januar is the coldest med lows near -10°C.
Nearby highlights include Missouri River, Yellowstone (UNESCO World Heritage Site), Yellowstone National Park and Grand Teton National Park.
Kort sagt. Today is about average for september. The forecast high of 21°C is in line med the 22°C typical for this month. The best window og be outside is roughly 3 PM og 6 PM, when temperature, rain chance and wind line up best. running is the strongest bet in Gallatin County today at 9.5/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Gallatin County
| Type | County |
|---|---|
| State | mantana |
| Land | USA |
| Kontinent | Nordamerika |
| Koordinater | 45°40′37.2″N 111°2′34.4″W (45.677, -111.0429) |
| Befolkning | 125.000 |
| Lokal tid | 4:39 AM (UTC-06:00) |
| Best months | juni, juli and august |
| Klima | Subarctic |
Vejr map for Gallatin County
Animated model layers. Pick a layer og load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Explore Gallatin County
Every topic we hold for this place, and the same topic for the places around it.
Klima for related places
Frequently asked questions
Where is Gallatin County?
Gallatin County is a county in mantana. Its coordinates are 45.677, -111.0429. It lies in Nordamerika.
What is the weather like in Gallatin County lige nu?
It is currently 5°C (40°F) med delvist skyet. Luftfugtighed is 68% and wind is 11 km/h.
When is the best time og visit Gallatin County?
juni, juli and august offer the most comfortable conditions in Gallatin County, which has a subarctic climate. januar, februar and december are usually the hardest months for outdoor plans.
What time zone is Gallatin County in?
Gallatin County observes America/Denver (UTC-06:00). The local time is 4:39 AM.
How many people live in Gallatin County?
Gallatin County has a population of approximately 125.000.
What are the top things og do in Gallatin County?
Popular options include Missouri River, Yellowstone (UNESCO World Heritage Site), Yellowstone National Park, Grand Teton National Park and Grand Teton.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Prognose and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vejr Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated september 15, 2026 at 4:39 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
