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Marston Lake is a reservoir in Denver, Colorado. It is owned by Denver Water and was completed in 1902.[2] The reservoir sends water to the Marston treatment plant, and from there the water is distributed to Denver residents.

Marston Lake[1]
The lake in 2016.
Marston Lake[1]
Marston Lake[1]
LocationDenver, Colorado
Coordinates39°37′48″N 105°04′04″W
Primary inflowsSouth Platte River
Basin countriesUnited States
Managing agencyDenver Water
Water volume19,795 acre⋅ft (24,417,000 m3)
Surface elevation5,525 ft (1,684 m)

The reservoir receives water from the South Platte River. The river receives water from the Colorado Western Slope through a transmountain diversion via the Roberts Tunnel.


Climate


According to the Köppen Climate Classification system, Marston Lake has a cold semi-arid climate, abbreviated "BSk" on climate maps. The hottest temperature recorded at Marston Lake was 104 °F (40 °C) on July 18, 1998, while the coldest temperature recorded was −19 °F (−28 °C) on December 31, 2014.[3]

Climate data for Marston Filter Plant, Colorado, 1991–2020 normals, extremes 1998–present
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 72
(22)		 77
(25)		 81
(27)		 84
(29)		 96
(36)		 100
(38)		 102
(39)		 104
(40)		 97
(36)		 87
(31)		 80
(27)		 73
(23)		 104
(40)
Mean maximum °F (°C) 65.5
(18.6)		 66.7
(19.3)		 74.5
(23.6)		 78.4
(25.8)		 85.1
(29.5)		 95.2
(35.1)		 96.6
(35.9)		 94.4
(34.7)		 91.8
(33.2)		 82.3
(27.9)		 74.4
(23.6)		 65.5
(18.6)		 97.7
(36.5)
Average high °F (°C) 45.8
(7.7)		 46.5
(8.1)		 54.6
(12.6)		 60.1
(15.6)		 69.0
(20.6)		 80.8
(27.1)		 86.4
(30.2)		 85.0
(29.4)		 77.2
(25.1)		 64.2
(17.9)		 53.4
(11.9)		 45.4
(7.4)		 64.0
(17.8)
Daily mean °F (°C) 32.6
(0.3)		 33.4
(0.8)		 41.3
(5.2)		 47.3
(8.5)		 56.4
(13.6)		 67.1
(19.5)		 73.0
(22.8)		 71.3
(21.8)		 63.0
(17.2)		 50.4
(10.2)		 40.6
(4.8)		 32.8
(0.4)		 50.8
(10.4)
Average low °F (°C) 19.3
(−7.1)		 20.3
(−6.5)		 28.1
(−2.2)		 34.5
(1.4)		 43.8
(6.6)		 53.4
(11.9)		 59.5
(15.3)		 57.5
(14.2)		 48.7
(9.3)		 36.7
(2.6)		 27.7
(−2.4)		 20.2
(−6.6)		 37.5
(3.0)
Mean minimum °F (°C) 0.0
(−17.8)		 −0.3
(−17.9)		 12.1
(−11.1)		 20.5
(−6.4)		 29.9
(−1.2)		 44.1
(6.7)		 53.1
(11.7)		 49.1
(9.5)		 38.3
(3.5)		 21.8
(−5.7)		 11.7
(−11.3)		 −1.7
(−18.7)		 −7.6
(−22.0)
Record low °F (°C) −8
(−22)		 −16
(−27)		 −6
(−21)		 6
(−14)		 15
(−9)		 31
(−1)		 49
(9)		 42
(6)		 29
(−2)		 7
(−14)		 −6
(−21)		 −19
(−28)		 −19
(−28)
Average precipitation inches (mm) 0.48
(12)		 0.67
(17)		 1.19
(30)		 2.07
(53)		 2.73
(69)		 1.87
(47)		 2.05
(52)		 1.85
(47)		 1.26
(32)		 1.04
(26)		 0.74
(19)		 0.61
(15)		 16.56
(419)
Average snowfall inches (cm) 6.3
(16)		 6.2
(16)		 5.4
(14)		 4.1
(10)		 0.8
(2.0)		 0.0
(0.0)		 0.0
(0.0)		 0.0
(0.0)		 0.0
(0.0)		 1.7
(4.3)		 3.7
(9.4)		 5.9
(15)		 34.1
(86.7)
Average precipitation days (≥ 0.01 in) 4.1 4.4 5.1 7.2 9.8 7.7 8.3 9.0 6.0 5.1 3.7 3.9 74.3
Average snowy days (≥ 0.1 in) 3.3 4.0 3.3 1.9 0.5 0.0 0.0 0.0 0.0 0.9 2.0 3.4 19.3
Source 1: NOAA[4]
Source 2: National Weather Service (mean maxima and minima 2006-2020)[3]

See also



References


  1. "Marston Lake". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2016-07-13.
  2. Denver Water. Historical timeline. Viewed: 2016-07-13.
  3. "NOAA Online Weather Data". National Weather Service. Retrieved August 9, 2022.
  4. "U.S. Climate Normals Quick Access". National Oceanic and Atmospheric Administration. Retrieved August 9, 2022.


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