Climate averages 1991–2020
Helong weather
in April.
A cool, moderately wet month: the 7th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Helong: daytime highs average 13.0°C and nights cool to about 0.3°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 54 mm of rain on roughly 10 days, which makes April a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 21 min on an average April day.
The nearest other city in this atlas is Longjing (43 km away). In April its highs average 14.4°C, 1.3°C warmer than Helong, with 43 mm of rain.
Among the 884 cities listed in China, Helong ranks joint 821st of 884 for the warmest April highs and joint 442nd of 884 for the driest April (rainfall, lowest first). The mean April high of those 884 cities is 20.6°C; Helong is 7.6°C cooler than that mean.
From April to May, average highs rise by 6.5°C to 19.5°C, and monthly rainfall rises from 54 mm to 100 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Helong climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -7.3°C-19.6°C | -19.6°C | 7.7 | 1.7 | 9.49 h |
| February | -3.2°C-16.6°C | -16.6°C | 14 | 3.5 | 10.511 h |
| March | 3.8°C-8.9°C | -8.9°C | 27 | 6.9 | 11.912 h |
| April, selected | 13.0°C0.3°C | 0.3°C | 54 | 9.9 | 13.313 h |
| May | 19.5°C6.8°C | 6.8°C | 100 | 15.4 | 14.615 h |
| June | 23.7°C12.8°C | 12.8°C | 127 | 16.4 | 15.215 h |
| July | 26.2°C17.1°C | 17.1°C | 177 | 17.2 | 15.015 h |
| August | 25.7°C16.9°C | 16.9°C | 160 | 15.8 | 13.914 h |
| September | 20.9°C10.2°C | 10.2°C | 75 | 9.3 | 12.513 h |
| October | 13.3°C2.3°C | 2.3°C | 39 | 7.4 | 11.111 h |
| November | 3.1°C-6.3°C | -6.3°C | 28 | 5.7 | 9.810 h |
| December | -5.2°C-16.2°C | -16.2°C | 11 | 3.4 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Longjing in AprilChina · 43 kmHigh 14.4°C · Low -0.2°C · 43 mm rain
- Yanji in AprilChina · 57 kmHigh 14.6°C · Low 0.3°C · 44 mm rain
- Tumen in AprilChina · 84 kmHigh 14.3°C · Low 1.1°C · 41 mm rain
- Chongjin in AprilNorth Korea · 105 kmHigh 10.4°C · Low 1.9°C · 52 mm rain
- Wangqing in AprilChina · 106 kmHigh 13.4°C · Low 0.8°C · 41 mm rain
- Ŭndŏk in AprilNorth Korea · 110 kmHigh 14.3°C · Low 1.8°C · 46 mm rain
- Dunhua in AprilChina · 111 kmHigh 12.0°C · Low -0.2°C · 52 mm rain
- Hunchun in AprilChina · 117 kmHigh 14.2°C · Low 0.3°C · 43 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Helong) is explained once on the Helong year overview and on the Sources, method and limits page.