| Weather Source |
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| Year | Lowest Temperature (F) | Highest Temperature (F) | Warmest Minimum Temperature (F) | Coldest Maximum Temperature (F) | Average Minimum Temperature (F) | Average Maximum Temperature (F) | Mean Temperature (F) | Total Precipitation (In) | Total Snowfall (In) | Max 24hr Precipitation (In) | Max 24hr Snowfall (In) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012 | 33 | 90 | 53 | 43 | 45.5 | 72.6 | 59.1 | 2.16 | 0.00 | 0.52 | 0.00 |
| 2011 | 31 | 83 | 56 | 41 | 40.5 | 60.9 | 50.7 | 4.06 | 0.00 | 1.06 | 0.00 |
| 2010 | 27 | 88 | 60 | 35 | 39.7 | 64.2 | 51.9 | 2.03 | 3.00 | 0.67 | 2.00 |
| 2009 | 38 | 86 | 61 | 43 | 46.3 | 69.0 | 57.6 | 2.73 | 0.00 | 1.33 | 0.00 |
| 2008 | 26 | 85 | 59 | 42 | 42.3 | 67.6 | 54.9 | 2.12 | 2.00 | 0.44 | 2.00 |
| 2007 | 32 | 83 | 56 | 52 | 45.9 | 69.5 | 57.7 | 3.05 | 0.00 | 1.29 | 0.00 |
| 2006 | 32 | 88 | 63 | 49 | 46.6 | 72.3 | 59.5 | 0.47 | 0.00 | 0.23 | 0.00 |
| 2005 | 29 | 90 | 65 | 35 | 46.1 | 68.7 | 57.4 | 1.43 | 1.00 | 0.32 | 1.00 |
| 2004 | 25 | 86 | 57 | 41 | 46.6 | 71.6 | 59.1 | 1.21 | 6.00 | 0.85 | 4.00 |
| 2003 | 31 | 91 | 64 | 41 | 45.1 | 68.8 | 57.0 | 1.44 | 2.00 | 0.97 | 2.00 |
| 2002 | 27 | 91 | 63 | 47 | 42.4 | 67.7 | 55.0 | 2.82 | 1.50 | 1.40 | 1.50 |
| 2001 | 28 | 85 | 64 | 34 | 45.2 | 69.6 | 57.4 | 3.32 | 7.00 | 0.84 | 4.00 |
| 2000 | 32 | 94 | 63 | 48 | 48.0 | 73.5 | 60.8 | 1.49 | 0.00 | 0.60 | 0.00 |
| 1999 | 30 | 83 | 51 | 42 | 42.5 | 67.1 | 54.8 | 3.84 | 0.00 | 0.78 | 0.00 |
| 1998 | 35 | 85 | 60 | 63 | 46.1 | 74.3 | 60.2 | 2.68 | 0.00 | 0.99 | 0.00 |
| 1997 | 30 | 83 | 58 | 51 | 44.8 | 69.5 | 57.1 | 1.10 | 0.00 | 0.32 | 0.00 |
| 1996 | 5.06 | 0.00 | 1.13 | 0.00 | |||||||
| 1995 | 6.55 | 0.00 | 2.80 | 0.00 | |||||||
| 1994 | 0.94 | 0.00 | 0.54 | 0.00 | |||||||
| 1993 | 1.38 | 0.00 | 0.80 | 0.00 | |||||||
| 1992 | 1.15 | 0.00 | 0.32 | 0.00 | |||||||
| 1991 | 3.93 | 3.00 | 1.52 | 3.00 | |||||||
| 1990 | 1.96 | 0.00 | 0.61 | 0.00 | |||||||
| 1989 | 2.02 | 1.00 | 0.38 | 1.00 | |||||||
| 1988 | 3.21 | 3.50 | 1.47 | 3.50 | |||||||
| 1987 | 4.01 | 0.00 | 0.82 | 0.00 | |||||||
| 1986 | 2.93 | 0.00 | 0.97 | 0.00 | |||||||
| 1985 | 2.09 | 0.00 | 0.73 | 0.00 | |||||||
| 1984 | 0.63 | 0.00 | 0.30 | 0.00 | |||||||
| 1983 | 5.28 | 2.00 | 1.78 | 2.00 | |||||||
| 1982 | 4.66 | 0.00 | 2.25 | 0.00 | |||||||
| 1981 | 4.11 | 0.00 | 0.69 | 0.00 | |||||||
| 1980 | 4.94 | 0.00 | 1.78 | 0.00 | |||||||
| 1979 | 4.61 | 7.00 | 0.91 | 2.50 | |||||||
| 1978 | 18 | 87 | 64 | 33 | 43.1 | 64.2 | 53.6 | 5.52 | 15.50 | 1.37 | 10.50 |
| Station Details for: "Ralston Reservoir" (Jefferson County) View Map | |
|---|---|
| Weather Source ID | 12152 |
| National Weather Service ID (NWS) | GDNC2 |
| NWS Cooperative Observer ID (COOP) | 056816 |
| International Civil Aviation Organization ID (ICAO) | |
| World Meteorological Organization ID (WMO) | |
| Latitude: 39.8297 Longitude: -105.235 Elevation: 1798.32m (5899.982ft) | |
| Zip Code: 80402 | |