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Suihua weather by month: averages, rainfall & climate trends

Suihua swings through a wide annual range, with 43.7°C between the monthly means of its warmest and coldest months. Most of the year's rain is packed into the months from May to September. Suihua weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

−5.6°Chigh well below average

3° / −2°Today
8° / −2°Average
see today in detail →

How it's changed

+1.5°Caverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49175frost days a year now (2016–2025) · 180 in the 1940sfrost days a year · 180 in the 1940s10days above 30°C a year now (2016–2025) · 4 in the 1940sdays above 30°C · 4 in the 1940s+1.5°C vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 7 mmhigh −16°low −27°February, rain 9 mmhigh −10°low −23°March, rain 18 mmhigh 0°low −11°April, rain 39 mmhigh 12°low 0°May, rain 65 mmhigh 19°low 8°June, rain 104 mmhigh 25°low 15°July, rain 164 mmhigh 27°low 18°August, rain 144 mmhigh 25°low 16°September, rain 80 mmhigh 19°low 9°October, rain 41 mmhigh 10°low 0°November, rain 18 mmhigh −2°low −12°December, rain 10 mmhigh −13°low −23°wettest month July, 164 mm · 698 mm a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Mostly clear

Right now

0.7°

−3°feels like
72%humidity
−4°dew point
9 km/hfrom W
UV index0.0
sunrise05:57sunset16:35day length10h 38m
TodayLight snow3°−2°
ThuClear9°−4°
FriOvercast11°3°
SatClear11°2°
SunClear8°−1°
MonOvercast9°−1°
TueClear2°−5°

On this date: October 21

Today (forecast)
3° / −2°
Average for October 21
8° / −2°

High well below average · −5.6°C

  • Highest since 1940: 20.2° · 1977
  • Lowest since 1940: −10.1° · 1980
  • One year ago: 6° / −6°

Every October 21 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 21 on record (n = 86). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Suihua is sampled from the ECMWF ERA5 reanalysis at 46.65°N, 126.97°E, with daily records since 1940.

Coordinates
46.65°N, 126.97°E
Time zone
Asia/Shanghai
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

11 of the last 30 days were warmer than the historical average for that date. Average difference: −0.2°C.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The warmest month is July, with typical afternoon highs of 26.6°C and nights around 18.4°C. Around 25 nights a year stay above 20°C. The coolest month is January, when afternoons reach about −15.7°C and overnight lows sit around −27.3°C. Frost shows up on around 175 mornings a year.

The yearly total for Suihua comes to about 698 mm; monthly amounts range from 7 mm in January up to 164 mm in July.

The record here starts in 1940, and since then the annual mean in Suihua has climbed 1.5°C from the first ten years to the last ten. That last decade has also been the warmest in the record.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 44°C. Wettest month: July (~164 mm). Whole year averages ~698 mm of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Rainy days by month

About 72 rainy days a year: most in July (~14), fewest in January (~1).

Bars = average number of days with ≥ 2 mm per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Suihua month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightHighestLowest
January−15.7°−27.3°7 mm18.8 h1.0° (2023)−43.2° (2001)
February−10.2°−22.7°9 mm110.1 h8.7° (2019)−40.0° (1952)
March−0.1°−11.2°18 mm211.6 h19.6° (2023)−31.5° (2018)
April11.6°0.5°39 mm513.3 h29.4° (2015)−15.9° (1943)
May19.4°8.1°65 mm714.8 h33.4° (2009)−3.7° (1987)
June24.6°14.9°104 mm1115.6 h37.3° (2018)3.3° (1964)
July26.6°18.4°164 mm1415.3 h35.9° (1982)9.3° (1954)
August24.9°16.2°144 mm1214.0 h35.8° (1982)4.5° (1976)
September19.3°9.0°80 mm812.3 h31.5° (2010)−4.4° (1967)
October10.4°0.1°41 mm510.6 h27.5° (2019)−14.7° (1982)
November−2.4°−11.8°18 mm39.1 h15.9° (2011)−32.6° (1947)
December−13.2°−23.4°10 mm18.4 h6.9° (2018)−41.4° (1952)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +1.5°C.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.26°C per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Mar–May is warming fastest: +0.40°C per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 30°C per year: 3.6 early in the record → 10.2 recently. Frost days: 180 → 175.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 2018, coldest in 2001: 37.3°C / −43.2°C.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~698 mm/year on average. Last decade: −1% vs that average. Long-term trend: −13 mm per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Suihua

Which is the warmest month in Suihua?
On long-term average, the warmest month in Suihua is July (mean daily temperature of about 22.4°C) and the coolest is January (about −21.3°C).
How does today's temperature in Suihua compare to the historical average?
On October 21, 2026, Suihua is forecast to reach a high of 2.7°C and a low of −2.0°C. The long-term average for this date (the full record since 1940) is a high of 8.3°C and a low of −1.7°C, so today's high is 5.6°C cooler than that average.
How much has Suihua warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Suihua is about 1.5°C warmer.
How much does it rain in Suihua?
Suihua receives about 698 mm of precipitation per year on long-term average, with July typically the wettest month.
What is the average temperature in Suihua?
Over the full record (since 1940), the annual mean temperature in Suihua is about 2.8°C. The warmest month is July and the coolest is January.
What are the average temperatures in Suihua by month?
Average daily highs and lows for each month in Suihua (°C, full record since 1940): January −16°/−27°, February −10°/−23°, March 0°/−11°, April 12°/0°, May 19°/8°, June 25°/15°, July 27°/18°, August 25°/16°, September 19°/9°, October 10°/0°, November −2°/−12°, December −13°/−23°.
What is the weather like in Suihua in summer?
In summer, June through August, Suihua is wet and pleasantly warm. Daytime highs sit at 25–27°C and nights at 15–18°C; July is the warmest month. Rain falls on about 12 days a month, adding up to around 137 mm. It is the wettest season of the year.
What is the weather like in Suihua in winter?
December to February is winter in Suihua, and it is freezing. Afternoons run −16 to −10°C and nights −27 to −23°C; January is the coldest month. Almost no snow or rain.
What is the weather like in Suihua in spring?
Spring in Suihua (March to May) is on the cool side. It warms from 0°C by day and −11°C at night in March to 19°C and 8°C in May. Rain and snow rise from 18 mm on 2 days in March to 65 mm on 7 days in May.
What is the weather like in Suihua in autumn?
Autumn in Suihua (September to November) is on the cool side. September is still 19°C by day and 9°C at night; by November it is down to −2°C and −12°C. Rain and snow fall off from 80 mm on 8 days in September to 18 mm on 3 days in November.
How many days a year does it rain in Suihua?
On long-term average, Suihua has about 72 days a year with at least 2 mm of rain or snow. The annual total is roughly 698 mm.

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