| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 37.5 | 21.1 | 76 | -23 | 3.4 | 6.9 |
| February | 42.1 | 24.3 | 77 | -30 | 3.3 | 4.8 |
| March | 51.1 | 31.0 | 85 | -10 | 4.0 | 3.2 |
| April | 63.6 | 41.0 | 94 | 11 | 4.9 | 0.4 |
| May | 72.1 | 51.4 | 99 | 23 | 4.8 | 0.0 |
| June | 80.2 | 60.0 | 103 | 37 | 4.6 | 0.0 |
| July | 83.4 | 63.6 | 105 | 41 | 4.1 | 0.0 |
| August | 82.1 | 62.1 | 103 | 38 | 3.7 | 0.0 |
| September | 76.6 | 54.6 | 105 | 25 | 3.2 | 0.0 |
| October | 65.3 | 43.5 | 95 | 11 | 3.2 | 0.2 |
| November | 52.5 | 33.2 | 85 | -1 | 3.2 | 0.5 |
| December | 42.1 | 26.4 | 76 | -23 | 3.7 | 2.0 |
| Entire year | 62.6 | 42.8 | 105 | -30 | 46.0 | 18.3 |
|
More Hillsboro Weather Records
1893–2024
|
||
|---|---|---|
| Highest daily low | 80 °F | July 6, 1977 |
| Lowest daily high | -8 °F | January 19, 1994 |
| Greatest daily range (Difference of high and low) |
58 °F | October 2, 1895 |
| Greatest difference in daily high over two conscutive days |
56 °F | Jan 19–20, 1996 |
| Most daily precipitation | 7.2 inches | July 23, 1965 |
| Most monthly precipitation | 14.7 inches | January 1937 |
| Most yearly precipitation | 62.9 inches | 2011 |
| Most yearly days with precipitation | 174 | 2011 |
| Earliest snow in season | October 19 | 1989 |
| Latest snow in season | May 9 | 1923 |
| Most daily snow | 15.5 inches | February 5, 1998 |
| Most monthly snow | 33.4 inches | January 1978 |
| Most yearly snow | 54.3 inches | 1910 |
| Most snow in a winter | 51.6 inches | 1925–1926 |
| Greatest snow accumulation | 26.0 inches | January 21, 1978 |
| Earliest freeze | September 8 | 1988 |
| Earliest day ≥ 80 °F | March 4 | 1976 |
| Earliest day ≥ 90 °F | April 16 | 1896 |
| Earliest day ≥ 100 °F | June 2 | 1895 |
| Latest freeze | May 22 | 1895 |
| Latest day ≥ 80 °F | November 12 | 1949 |
| Latest day ≥ 90 °F | October 16 | 1897 |
| Latest day ≥ 100 °F | September 22 | 1895 |
| Most days in a year < 0 °F | 20 | 1963 |
| Most days in a year < 32 °F | 155 | 1895 |
| Most days in a year ≥ 80 °F | 138 | 1895 |
| Most days in a year ≥ 90 °F | 82 | 1895 |
| Most days in a year ≥ 100 °F | 15 | 1895 |
|
Hillsboro Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 17 days | Nov 2–18, 1985 |
| Without precipitation | 61 days | May 1 – Jun 30, 2010 |
| With snow | 8 days | Jan 7–14, 1893 |
| High temperature at or below freezing |
23 days | Jan 7–29, 1985 |
| High temperature ≥ 80 °F | 64 days | Jun 21 – Aug 23, 1944 |
| High temperature ≥ 90 °F | 15 days | Aug 3–17, 1944 |
| High temperature ≥ 100 °F | 5 days | Aug 24–28, 1948 |
| Years | Station | Coordinates |
|---|---|---|
| 1893–2024 | Hillsboro | location |