USA Väder Prognos
USA weather: 26°C, mulet. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
USA weather in december
One of the harder months here - go in med a plan.
december runs 10°C cooler than the annual average in USA.
Compare med november.
Väder map for USA
Animated model layers. Pick a layer och load it.
Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Klimat in USA month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Månad | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januari | 4° | -4° | 87 mm | ★★☆☆☆ |
| februari | 7° | -2° | 70 mm | ★★☆☆☆ |
| mars | 16° | 4° | 106 mm | ★★★☆☆ |
| april | 21° | 10° | 84 mm | ★★★★☆ |
| maj | 23° | 14° | 167 mm | ★★★☆☆ |
| juni | 30° | 19° | 111 mm | ★★★★☆ |
| juli | 32° | 22° | 167 mm | ★★★☆☆ |
| augusti | 29° | 20° | 142 mm | ★★★★☆ |
| september | 26° | 17° | 80 mm | ★★★★☆ |
| oktober | 20° | 10° | 44 mm | ★★★★☆ |
| november | 14° | 5° | 64 mm | ★★★☆☆ |
| december | 8° | 0° | 110 mm | ★★☆☆☆ |
Klimat type: Kontinental. Källa: Open-Meteo archive (ERA5).
Bästa tiden att besöka USA
Go in april, juni, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.
What och pack, what och skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sönglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 25°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid januari, februari and december - historically the least comfortable months here.
How USA compares med nearby places
Annual averages, and the difference against USA.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Niagara Falls, Ontario | 496 km | 10°C | 4°C cooler | 992 mm |
| CN Tower | 562 km | 10°C | 4°C cooler | 887 mm |
| Distillery District | 562 km | 10°C | 5°C cooler | 887 mm |
| Toronto | 563 km | 10°C | 5°C cooler | 887 mm |
| Kensington market | 564 km | 10°C | 5°C cooler | 887 mm |
Se prognosen för USA per tidsintervall
USA weather - more answers
Explore USA
Every topic we hold for this place, and the same topic for the places around it.
Väder for related places
Frequently asked questions
Where is USA?
USA är ett land i Nordamerika. Its coordinates are 38.9072, -77.0369. It lies in Nordamerika.
What is the weather like in USA just nu?
It is currently 26°C (79°F) med mulet. Luftfuktighet is 52% and wind is 8 km/h.
When is the best time och visit USA?
april, juni, september and oktober offer the most comfortable conditions in USA, which has a continental climate. januari, februari and december are usually the hardest months for outdoor plans.
What time zone is USA in?
USA observes America/New_York (UTC-04:00). The local time is 9:24 PM.
How many people live in USA?
USA has a population of approximately 335 million.
What is the nearest airport och USA?
The closest airports are Boston Logan International Airport (BOS), 637 km away, Dallas/Fort Worth International Airport (DFW), 1.917 km away and Austin-Bergstrom International Airport (AUS), 2.116 km away.
What are the top things och do in USA?
Popular options include Acadia National Park, Arches National Park, Badlands National Park, Big Bend National Park, Biscayne National Park and Black Canyon of the Gunnison National Park.
What places are in USA?
USA covers 52 places in this atlas, including California, Florida, New York, Arizona, Hawaii and Nevada.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (countries-v1) - coordinates, hierarchy and facts. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| 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 30, 2026 at 9:24 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
