Climate averages 1991–2020
Sumy weather
in October.
A cool, moderately wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a cool month in Sumy: daytime highs average 11.1°C and nights cool to about 4.4°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 50 mm of rain on roughly 9 days, which makes October a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 45 min on an average October day.
The nearest other city in this atlas is Konotop (117 km away). In October its highs average 11.2°C, about as warm as Sumy, with 45 mm of rain.
Among the 59 cities listed in Ukraine, Sumy ranks 58th of 59 for the warmest October highs and 54th of 59 for the driest October (rainfall, lowest first). The mean October high of those 59 cities is 13.2°C; Sumy is 2.0°C cooler than that mean.
From October to November, average highs fall by 7.8°C to 3.4°C, and monthly rainfall falls from 50 mm to 41 mm.
The annual picture
October 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
Sumy climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.0°C-7.5°C | -7.5°C | 42 | 9.9 | 8.58 h |
| February | -1.9°C-7.8°C | -7.8°C | 35 | 8.9 | 10.010 h |
| March | 4.0°C-3.7°C | -3.7°C | 42 | 9.6 | 11.812 h |
| April | 13.2°C3.3°C | 3.3°C | 43 | 9.3 | 13.814 h |
| May | 19.5°C9.5°C | 9.5°C | 61 | 11.3 | 15.516 h |
| June | 23.2°C13.7°C | 13.7°C | 67 | 11.0 | 16.416 h |
| July | 25.2°C15.9°C | 15.9°C | 73 | 11.2 | 16.016 h |
| August | 24.6°C15.0°C | 15.0°C | 47 | 7.6 | 14.615 h |
| September | 18.5°C10.1°C | 10.1°C | 51 | 8.2 | 12.713 h |
| October, selected | 11.1°C4.4°C | 4.4°C | 50 | 8.8 | 10.811 h |
| November | 3.4°C-1.1°C | -1.1°C | 41 | 8.1 | 9.09 h |
| December | -1.4°C-5.6°C | -5.6°C | 40 | 9.2 | 8.08 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
October in nearby cities
- Konotop in OctoberUkraine · 117 kmHigh 11.2°C · Low 4.6°C · 45 mm rain
- Belgorod in OctoberRussia · 130 kmHigh 11.3°C · Low 4.6°C · 47 mm rain
- Kursk in OctoberRussia · 132 kmHigh 10.5°C · Low 4.1°C · 54 mm rain
- Shostka in OctoberUkraine · 140 kmHigh 10.5°C · Low 4.2°C · 47 mm rain
- Kharkiv in OctoberUkraine · 146 kmHigh 12.0°C · Low 5.0°C · 44 mm rain
- Poltava in OctoberUkraine · 149 kmHigh 12.2°C · Low 5.1°C · 42 mm rain
- Zheleznogorsk (Kursk Oblast), Russia in OctoberRussia · 163 kmHigh 10.1°C · Low 4.0°C · 54 mm rain
- Gubkin in OctoberRussia · 195 kmHigh 10.9°C · Low 4.3°C · 50 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 Sumy) is explained once on the Sumy year overview and on the Sources, method and limits page.