June
June · August · July
Mongolia · 1991–2020
June leads for comfortable weather in Orhon: typically 24.8°C by day, 10.8°C at night, with 59 mm of rain. Based on measured 1991–2020 NOAA station history.
June · August · July
July · June · August
May · September · June
The weakest month is January, scoring 5 against June’s 82 — days reach only -15°C, 39° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -15°C | -24.5°C | 4 mm | 1.2 | 8 h 32 | 5 | Strong coverage |
| February | -9°C | -20.5°C | 3 mm | 0.9 | 10 h 00 | 5 | Strong coverage |
| March | 1.1°C | -11.5°C | 5 mm | 1.6 | 11 h 43 | 5 | Strong coverage |
| April | 11.2°C | -2.6°C | 13 mm | 3.1 | 13 h 40 | 26 | Strong coverage |
| May | 18.5°C | 3.8°C | 38 mm | 5 | 15 h 21 | 59 | Strong coverage |
| June | 24.8°C | 10.8°C | 59 mm | 7.8 | 16 h 19 | 82 | Strong coverage |
| July | 26.4°C | 14°C | 78 mm | 9.1 | 15 h 56 | 79 | Strong coverage |
| August | 23.7°C | 11.5°C | 78 mm | 9 | 14 h 27 | 82 | Strong coverage |
| September | 16.9°C | 4.3°C | 41 mm | 6.9 | 12 h 32 | 53 | Strong coverage |
| October | 7.7°C | -3.9°C | 14 mm | 3.3 | 10 h 39 | 12 | Strong coverage |
| November | -3.9°C | -13.9°C | 8 mm | 2.2 | 8 h 58 | 5 | Strong coverage |
| December | -12.7°C | -21.9°C | 6 mm | 1.7 | 8 h 07 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | -0.1°C3 Jan 2002 | -55.2°C8 Jan 1931 | 12 mm13 Jan 1934 | 15 mm1934 · driest 0 mm in 1918 | 116 |
| February | 8.6°C27 Feb 2007 | -49.1°C3 Feb 1923 | 15 mm20 Feb 1922 | 29 mm1922 · driest 0 mm in 1931 | 118 |
| March | 20.5°C30 Mar 2002 | -39.7°C6 Mar 1923 | 21 mm28 Mar 1922 | 23 mm1922 · driest 0 mm in 1923 | 116 |
| April | 30.6°C30 Apr 2020 | -27.4°C3 Apr 1923 | 34 mm29 Apr 2011 | 54 mm1967 · driest 0 mm in 1925 | 117 |
| May | 35.0°C26 May 1974 | -12.1°C8 May 1931 | 69 mm20 May 1924 | 125 mm1924 · driest 3 mm in 2019 | 116 |
| June | 39.3°C23 Jun 2010 | -4.5°C4 Jun 1992 | 65 mm29 Jun 1991 | 187 mm1971 · driest 9 mm in 1969 | 114 |
| July | 40.6°C24 Jul 1999 | 1.4°C3 Jul 1988 | 81 mm13 Jul 2000 | 213 mm1990 · driest 17 mm in 1992 | 111 |
| August | 37.1°C3 Aug 1936 | -2.7°C30 Aug 1972 | 88 mm7 Aug 1990 | 231 mm1990 · driest 24 mm in 2021 | 117 |
| September | 31.6°C8 Sep 2022 | -9.7°C24 Sep 1969 | 49 mm17 Sep 1917 | 105 mm1917 · driest 3 mm in 1947 | 113 |
| October | 26.6°C1 Oct 1986 | -26.8°C29 Oct 1901 | 27 mm5 Oct 1975 | 39 mm1975 · driest 0 mm in 1940 | 115 |
| November | 12.8°C5 Nov 2009 | -34.7°C30 Nov 1952 | 13 mm1 Nov 2003 | 25 mm1931 · driest 0 mm in 2011 | 114 |
| December | 5.4°C2 Dec 1977 | -42.1°C30 Dec 1901 | 12 mm10 Dec 1927 | 23 mm1927 · driest 0 mm in 1998 | 114 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 31 | 0 |
| February | 0 | 0 | 28 | 0 |
| March | 0 | 0 | 30 | 0 |
| April | <1 | 0 | 21 | <1 |
| May | 5 | 1 | 7 | 1 |
| June | 15 | 5 | <1 | 2 |
| July | 19 | 6 | 0 | 2 |
| August | 12 | 3 | 0 | 3 |
| September | 2 | 0 | 5 | 1 |
| October | 0 | 0 | 25 | <1 |
| November | 0 | 0 | 29 | 0 |
| December | 0 | 0 | 30 | 0 |
The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 86); on 2011–2025 it is June (87). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 4% | 0% | <1% | -19.5–-12.6°C |
| February | 0% | 3% | 0% | <1% | -14.3–-7.4°C |
| March | 0% | 4% | 0% | <1% | -4.7–3.2°C |
| April | 6% | 9% | <1% | 3% | 6.7–13.1°C |
| May | 34% | 15% | 2% | 9% | 15.2–20.1°C |
| June | 63% | 25% | 5% | 30% | 21.5–26.3°C |
| July | 63% | 33% | 9% | 44% | 23.3–28.1°C |
| August | 57% | 30% | 8% | 35% | 21.1–25.1°C |
| September | 22% | 20% | 4% | 13% | 14.4–18.6°C |
| October | 2% | 10% | <1% | 3% | 4.1–10.0°C |
| November | 0% | 7% | 0% | 1% | -8.0–-1.0°C |
| December | 0% | 5% | 0% | <1% | -17.4–-9.9°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page