Nanyang climate
Nanyang (Henan, China) has a monsoon-influenced humid subtropical climate (Köppen Cwa). The average temperature over the year is 16 °C61 °F, and about 838 mm33 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Nanyang climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 744 | −326 | 235 | 170.7 | 28 |
| Feb | 1151 | −131 | 541 | 200.8 | 16 |
| Mar | 1763 | 439 | 1151 | 331.3 | 4 |
| Apr | 2475 | 1050 | 1763 | 582.3 | 0 |
| May | 2985 | 1660 | 2272 | 883.5 | 0 |
| Jun | 3391 | 2169 | 2780 | 1094.3 | 0 |
| Jul | 3392 | 2374 | 2883 | 1797.0 | 0 |
| Aug | 3290 | 2272 | 2781 | 1335.2 | 0 |
| Sep | 2882 | 1763 | 2272 | 923.6 | 0 |
| Oct | 2272 | 1152 | 1762 | 572.3 | 0 |
| Nov | 1559 | 439 | 1049 | 371.4 | 4 |
| Dec | 947 | −229 | 338 | 140.5 | 22 |
| Year | 3392 | −326 | 1661 | 83833 | 73 |
“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 | 65% | 56% | 2.2 | 10:12 |
| Feb | 67% | 63% | 2.7 | 10:58 |
| Mar | 62% | 64% | 3.8 | 11:53 |
| Apr | 60% | 66% | 4.6 | 12:58 |
| May | 60% | 71% | 4.9 | 13:51 |
| Jun | 64% | 73% | 4.9 | 14:19 |
| Jul | 73% | 74% | 4.6 | 14:08 |
| Aug | 74% | 68% | 4.3 | 13:22 |
| Sep | 71% | 69% | 3.6 | 12:19 |
| Oct | 67% | 62% | 3.0 | 11:18 |
| Nov | 67% | 56% | 2.4 | 10:24 |
| Dec | 65% | 52% | 2.2 | 9:59 |
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 Nanyang is like
The warmest month is July, with an average high of 33 °C92 °F and a low of 23 °C74 °F. The coldest is January, when highs average 7 °C44 °F and lows −3 °C26 °F. Seasons are strongly marked: the warmest month is on average 26.6 °C47.9 °F warmer than the coldest.
Annual precipitation is moderate at about 838 mm33 in. The wettest three-month stretch is June–August, which brings 50% of the annual total. Months with less than 20 mm0.8 in on average: December and January. The wettest month is July (179 mm7.0 in), the driest is December (14 mm0.5 in).
Relative humidity ranges from 60% in May to 74% in August. The clearest skies (lowest average cloud amount, 52%) are typical of December. Average wind speed near the ground ranges from 6 km/h (4 mph) in October to 8 km/h (5 mph) in April. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Nanyang
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and September and October: average highs of 22 °C72 °F to 28 °C82 °F with 57 mm2.3 in to 92 mm3.6 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 7 °C44 °F.
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.
Nanyang weather by month
- January7 °C44 °F / −3 °C26 °F
- February11 °C51 °F / −1 °C31 °F
- March17 °C63 °F / 4 °C39 °F
- April24 °C75 °F / 10 °C50 °F
- May29 °C85 °F / 16 °C60 °F
- June33 °C91 °F / 21 °C69 °F
- July33 °C92 °F / 23 °C74 °F
- August32 °C90 °F / 22 °C72 °F
- September28 °C82 °F / 17 °C63 °F
- October22 °C72 °F / 11 °C52 °F
- November15 °C59 °F / 4 °C39 °F
- December9 °C47 °F / −2 °C29 °F
What to pack for Nanyang
- Winter (December–February) — highs 744 to 11 °C51 °F, lows −326 to −1 °C31 °F, about 17 mm0.7 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1763 to 29 °C85 °F, lows 439 to 16 °C60 °F, about 60 mm2.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3290 to 33 °C92 °F, lows 2169 to 23 °C74 °F, about 140 mm5.5 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 1559 to 28 °C82 °F, lows 439 to 17 °C63 °F, about 62 mm2.4 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How Nanyang compares
Compared with Shiyan, about 170 km to the west, Nanyang has practically the same average temperature and receives a similar amount of precipitation. The difference is largest in January (1 °C1.8 °F cooler).
Of the 547 places in China covered by World Climates, Nanyang is the 252nd warmest by annual mean temperature and the 289th 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: Oklahoma City (United States, Cfa), Lubbock (United States, Cfa) and Norman (United States, Cfa).
The same NASA POWER grid cell also contains Zhenping (pop. 181,528). Their long-term averages in this dataset are essentially the same as for Nanyang, so they do not have separate pages.
Nearby places
- Tanghe 44 km · 16 °C61 °F · 930 mm37 in
- Dengzhou 56 km · 16 °C61 °F · 817 mm32 in
- Zaoyang 100 km · 16 °C61 °F · 914 mm36 in
- Laohekou 107 km · 17 °C62 °F · 817 mm32 in
- Pingdingshan 108 km · 16 °C60 °F · 811 mm32 in
- Xiangyang 114 km · 17 °C63 °F · 874 mm34 in
- Zhumadian 138 km · 16 °C60 °F · 894 mm35 in
- Luohe 152 km · 16 °C60 °F · 821 mm32 in
Frequently asked questions
What is the warmest month in Nanyang?
July is the warmest month in Nanyang, with an average high of 33 °C (92 °F) and an average low of 23 °C (74 °F).
What is the coldest month in Nanyang?
January is the coldest month, with an average high of 7 °C (44 °F) and an average low of -3 °C (26 °F).
When does it rain the most in Nanyang?
July is the wettest month with about 179 mm (7.0 in) of precipitation; December is the driest with about 14 mm (0.5 in).
What is the best time to visit Nanyang?
Judging by long-term averages, the most comfortable months are April and September 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 190 m, while Nanyang lies at about 126 m. Temperatures on this page were therefore adjusted by +0.4 °C0.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.