Deyang climate
Deyang (Sichuan, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 18 °C64 °F, and about 920 mm36 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Deyang climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1051 | 033 | 542 | 100.4 | 13 |
| Feb | 1457 | 337 | 847 | 110.4 | 5 |
| Mar | 1967 | 846 | 1457 | 281.1 | 0 |
| Apr | 2577 | 1356 | 1967 | 522.0 | 0 |
| May | 2984 | 1763 | 2374 | 943.7 | 0 |
| Jun | 3289 | 2169 | 2679 | 1154.5 | 0 |
| Jul | 3391 | 2374 | 2882 | 2228.7 | 0 |
| Aug | 3188 | 2272 | 2780 | 1827.2 | 0 |
| Sep | 2781 | 1865 | 2373 | 1275.0 | 0 |
| Oct | 2272 | 1356 | 1864 | 532.1 | 0 |
| Nov | 1762 | 846 | 1254 | 180.7 | 0 |
| Dec | 1152 | 235 | 744 | 90.3 | 8 |
| Year | 3391 | 033 | 1864 | 92036 | 27 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 71% | 78% | 1.9 | 10:20 |
| Feb | 70% | 86% | 2.2 | 11:02 |
| Mar | 65% | 85% | 2.9 | 11:54 |
| Apr | 61% | 84% | 3.8 | 12:54 |
| May | 61% | 87% | 4.2 | 13:43 |
| Jun | 65% | 88% | 4.1 | 14:09 |
| Jul | 72% | 84% | 4.2 | 13:59 |
| Aug | 76% | 81% | 4.1 | 13:16 |
| Sep | 78% | 90% | 2.8 | 12:19 |
| Oct | 76% | 89% | 2.2 | 11:21 |
| Nov | 74% | 81% | 1.9 | 10:32 |
| Dec | 71% | 75% | 1.8 | 10:08 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Deyang is like
The warmest month is July, with an average high of 33 °C91 °F and a low of 23 °C74 °F. The coldest is January, when highs average 10 °C51 °F and lows 0 °C33 °F. Seasons are strongly marked: the warmest month is on average 22.5 °C40.6 °F warmer than the coldest.
Annual precipitation is moderate at about 920 mm36 in. The wettest three-month stretch is July–September, which brings 58% of the annual total. Months with less than 20 mm0.8 in on average: November–February. The wettest month is July (222 mm8.7 in), the driest is December (9 mm0.3 in).
Relative humidity ranges from 61% in May to 78% in September. The clearest skies (lowest average cloud amount, 75%) are typical of December. Average wind speed near the ground ranges from 5 km/h (3 mph) in December to 7 km/h (5 mph) in May. Daylight lasts from about 10.1 hours in December to 14.2 hours in June.
Best time to visit Deyang
Based on these averages, the most comfortable months for sightseeing and outdoor activities are March and April and October: average highs of 19 °C67 °F to 25 °C77 °F with 28 mm1.1 in to 53 mm2.1 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 33 °C91 °F and very wet (222 mm8.7 in).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Deyang
- Winter (December–February) — highs 1051 to 14 °C57 °F, lows 033 to 3 °C37 °F, about 10 mm0.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 1967 to 29 °C84 °F, lows 846 to 17 °C63 °F, about 58 mm2.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3188 to 33 °C91 °F, lows 2169 to 23 °C74 °F, about 173 mm6.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1762 to 27 °C81 °F, lows 846 to 18 °C65 °F, about 66 mm2.6 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
How Deyang compares
Compared with Mianyang, about 47 km to the northeast, Deyang is on average 0.5 °C0.9 °F cooler and receives a similar amount of precipitation. The difference is largest in December (0.9 °C1.6 °F cooler).
Of the 547 places in China covered by World Climates, Deyang is the 170th warmest by annual mean temperature and the 268th wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Midland (United States, BSk), San Luis (Argentina, Cwa) and Lubbock (United States, Cfa).
Nearby places
- Mianyang 47 km · 18 °C64 °F · 895 mm35 in
- Chengdu 60 km · 17 °C63 °F · 990 mm39 in
- Jiangyou 78 km · 17 °C63 °F · 929 mm37 in
- Ziyang 115 km · 18 °C64 °F · 1,067 mm42 in
- Meishan 132 km · 18 °C64 °F · 1,207 mm48 in
- Suining 133 km · 18 °C65 °F · 995 mm39 in
- Pingwu County 143 km · 17 °C62 °F · 788 mm31 in
- Nanchong 167 km · 18 °C64 °F · 1,018 mm40 in
Frequently asked questions
What is the warmest month in Deyang?
July is the warmest month in Deyang, with an average high of 33 °C (91 °F) and an average low of 23 °C (74 °F).
What is the coldest month in Deyang?
January is the coldest month, with an average high of 10 °C (51 °F) and an average low of 0 °C (33 °F).
When does it rain the most in Deyang?
July is the wettest month with about 222 mm (8.7 in) of precipitation; December is the driest with about 9 mm (0.3 in).
What is the best time to visit Deyang?
Judging by long-term averages, the most comfortable months are March and April and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 605 m, while Deyang lies at about 501 m. Temperatures on this page were therefore adjusted by +0.7 °C1.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.