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Has the climate in Choibalsan changed?

Choibalsan has warmed about 3.5°F since 1971.

About 0.6°F per decade, measured from Choibalsan's official daily weather records, 1971–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Choibalsan's warming is broadly in line with other cities in Mongolia — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
79 fewer nights
1970s
214 / yr
Recent
135 / yr
Milder winters — fewer frosts
Average temperature
+2.4°F
1970s
33.6°F
Recent
36.0°F
A steady upward drift
Hot days above 90°F
6 more days
1970s
7 / yr
Recent
13 / yr
More days of serious heat
Rainy days
10 fewer days
1970s
37 / yr
Recent
27 / yr
Drier on average

Choibalsan's temperature, year by year

Average temperature for each year from 1971 to 2025.

30°32°34°36°38°40°1971: 34.7°F1972: 32.6°F1973: 34.8°F1974: 32.1°F1975: 35.5°F1976: 33.4°F1977: 34.2°F1978: 33.9°F1979: 33.6°F1980: 32.7°F1981: 33.7°F1982: 35.5°F1983: 33.5°F1984: 31.3°F1985: 32.1°F1986: 34.8°F1987: 32.4°F1988: 34.7°F1989: 35.8°F1990: 35.3°F1991: 34.2°F1992: 35.6°F1993: 35.6°F1994: 35.2°F1995: 36.4°F1996: 34.2°F1997: 35.9°F1998: 36.6°F1999: 35.8°F2000: 35.0°F2001: 34.4°F2002: 35.8°F2003: 34.3°F2004: 36.5°F2005: 34.9°F2006: 34.7°F2007: 38.3°F2008: 36.8°F2009: 34.2°F2010: 32.9°F2011: 34.9°F2012: 32.4°F2013: 34.5°F2014: 37.1°F2015: 37.1°F2016: 34.9°F2017: 36.6°F2018: 37.2°F2019: 37.1°F2020: 37.2°F2021: 37.5°F2022: 35.5°F2023: 36.3°F2024: 38.0°F2025: 37.8°Flong-term trend1971198019902000201020202025
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

In day-to-day terms, that long-term shift shows up as about 55 fewer freezing nights a year and about 6 more days above 90°F compared with the 1970s.

When in the year the change shows up

How much warmer each month is now than in the 1970s. Useful if you garden or care about a particular season — otherwise the headline above already has the answer.

-2.5°-2.0°-1.5°-1.0°-0.5°0.0°+0.5°+1.0°+1.5°+2.0°January: -1.1°F-1.1JFebruary: +0.2°F+0.2FMarch: +0.9°F+0.9MApril: +1.6°F+1.6AMay: +1.4°F+1.4MJune: +1.6°F+1.6JJuly: +2.0°F+2.0JAugust: +1.3°F+1.3ASeptember: +1.5°F+1.5SOctober: +0.6°F+0.6ONovember: +0.2°F+0.2NDecember: -2.1°F-2.1D

December has cooled the most — about 2.1°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — 1991–2020 normals computed from 29 years of daily observations at Choibalsan, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →