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Bonanza Mountain Estates, CO Weather
Bonanza Mountain Estates, Colorado sits at 39.9769, -105.4796. Its warmest month is July, when the day usually reaches 68F, and its coldest is February, when the night usually falls to 11F. February is the wettest, with rain on about 17 days. The hottest day in the station record is 80F on July 20, 2005, and the coldest night -37F on February 2, 2011. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Bonanza Mountain Estates weather
Bonanza Mountain Estates sits at 39.9769, -105.4796 and covers about 0.168 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Bonanza Mountain Estates
Bonanza Mountain Estates is warmest in July, when the day usually reaches 68F, and coldest in February, when the night usually falls to 11F. February is the wettest month, with rain on about 17 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
January
29F
12F
13
February
28F
11F
17
March
36F
17F
14
April
40F
22F
17
May
50F
29F
15
June
63F
37F
11
July
68F
43F
13
August
66F
41F
13
September
60F
35F
8
October
47F
26F
10
November
36F
19F
10
December
28F
12F
15
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Boulder 14 W station 5.2 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Bonanza Mountain Estates weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Bonanza Mountain Estates: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Bonanza Mountain Estates weather records
In 23,296 days of observations Bonanza Mountain Estates has been as hot as 80F and as cold as -37F. Not averages: the actual days.
Hottest day
80F
July 20, 2005
Coldest night
-37F
February 2, 2011
Wettest day
3.00 in
July 8, 2012
Biggest snow
46.0 in
March 19, 2003
NOAA GHCN daily station records, observed 2003 to 2025: temperature at the Boulder 14 W station, 5.2 miles away; precipitation at the Nederland 2.61 Nne station, 1.2 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Bonanza Mountain Estates weather
Common questions
What is the weather usually like in Bonanza Mountain Estates, CO?
Bonanza Mountain Estates is warmest in July, when the day usually reaches 68F, and coldest in February, when the night usually falls to 11F. Rain falls on roughly 156 days a year, most often in February. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Bonanza Mountain Estates, CO?
About 156 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. February is the wettest month with rain on about 17 of its days, and September the driest with about 8.
What is the hottest it has ever been in Bonanza Mountain Estates, CO?
The hottest day measured for Bonanza Mountain Estates reached 80F on July 20, 2005, and the coldest night -37F on February 2, 2011. Both are real NOAA station measurements from the GHCN daily archive, observed 2003 to 2025, at the Boulder 14 W station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Bonanza Mountain Estates, CO?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Bonanza Mountain Estates forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.