Bethany in Winter
In winter (December, January and February), Bethany sees average daytime highs around 48°F and overnight lows near 37°F, with 19.2 in of precipitation over about 50 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Over the season highs climb from about 47°F in early December to 52°F by late February. The sky is clear or mostly clear about 14% of the time across winter, and the air most often feels dry.
Winter is Bethany's weakest season of the year to visit on our travel score. For the whole year in context, see Bethany's year-round climate.
- Avg daytime high
- 48°F
- coldest season of the year
- Avg overnight low
- 37°F
- Precipitation
- 19.2 in
- 50 wet days
- Avg wind
- 5 mph
- Travel score
- 1.4
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Bethany in Winter
Over the season highs climb from about 47°F in early December to 52°F by late February.
A typical winter day in Bethany reaches about 48°F and drops to 37°F overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Bethany
Once humidity and wind are folded in, winter brings about 0 days that feel above 90°F and 44 that feel at or below 32°F.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Bethany weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 47° / 36° | 6.6 | 17.3 | 1.8 | 8.9 | 1.2 |
| Feb | 50° / 37° | 5.0 | 14.8 | 1.5 | 10.1 | 2.0 |
| Mar | 55° / 39° | 5.7 | 17.5 | 0.7 | 11.6 | 2.8 |
| Apr | 60° / 42° | 4.5 | 16.1 | 0 | 13.2 | 4.0 |
| May | 67° / 48° | 2.8 | 11.1 | 0 | 14.7 | 5.9 |
| Jun | 72° / 52° | 1.7 | 7.6 | 0 | 15.4 | 7.0 |
| Jul | 80° / 56° | 0.5 | 2.3 | 0 | 15.1 | 8.0 |
| Aug | 81° / 56° | 0.6 | 2.6 | 0 | 13.9 | 7.9 |
| Sep | 75° / 52° | 1.6 | 6.2 | 0 | 12.3 | 7.7 |
| Oct | 63° / 46° | 4.2 | 11.9 | 0 | 10.7 | 5.2 |
| Nov | 52° / 40° | 6.9 | 17.3 | 0.4 | 9.3 | 2.2 |
| Dec | 46° / 36° | 7.6 | 18 | 2.2 | 8.6 | 0.9 |
Cloud cover in Winter
The sky is clear or mostly clear about 14% of the time across winter.
Chance of precipitation in Winter
Bethany gets around 19.2 in of rain and snow over 50 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 5 mph across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 48 min in early December to 10 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 1.4 kWh/m².
Hazard calendar for Bethany
In winter, Bethany overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Bethany's rainy season runs October–April, when most of the year's rain falls.
Is winter a good time to visit Bethany?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Bethany.
What to pack for Bethany in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Bethany sees daytime highs around 48°F and nights near 37°F. Pack a warm layer and rain gear. Worth having: a heavy coat. About 50 days see rain.
UV index in Bethany in Winter
Clear-sky midday UV across winter averages around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Bethany peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 8 | 7 | 8 | 7 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | Very high | High | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 8 | Very high |
| Aug | 7 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Bethany in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Bethany is worst in September — around 22 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 9 | 11 | 11 | 10 | 9 | 8 | 13 | 22 | 14 | 9 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 11 | Good |
| Apr | 11 | Good |
| May | 10 | Good |
| Jun | 9 | Good |
| Jul | 8 | Good |
| Aug | 13 | Moderate |
| Sep | 22 | Moderate |
| Oct | 14 | Moderate |
| Nov | 9 | Good |
| Dec | 7 | Good |
Where is Bethany?
Bethany sits at 45.6°N, 122.9°W, 184 ft above sea level, in United States. The nearest listed city is Aloha, 4.3 mi away.
Topography around Bethany
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Bethany.
Within 2 miles, the terrain around Bethany has only modest variations in elevation — a maximum elevation change of 282 ft around an average of 240 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,555 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,990 ft.
The land around Bethany is covered by trees (43%) and artificial surfaces (31%) within 2 miles, trees (51%) within 10 miles, and trees (78%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Bethany (45.5579°, -122.8676°, elevation 184 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.