| 2026-02-26 | 7:00 AM | 0.06 | 0.3 | 0.06 | 1.5 | NA | | |
| 2026-02-25 | 7:00 AM | 0.20 | 0.5 | 0.20 | 1.5 | NA | | |
| 2026-02-24 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.5 | NA | | |
| 2026-02-23 | 7:00 AM | 0.00 | 0.0 | 0.00 | 3.0 | NA | | |
| 2026-02-22 | 7:00 AM | 0.00 | 0.0 | 0.00 | 3.5 | NA | | |
| 2026-02-21 | 7:00 AM | 0.14 | 2.3 | 0.14 | 4.5 | NA | | |
| 2026-02-20 | 7:00 AM | T | T | T | 2.5 | NA | | |
| 2026-02-19 | 7:00 AM | 0.01 | 0.1 | 0.01 | 3.0 | NA | | Tmax: 33; Tmin: 15 by midnight / 07 since then. Snow shower in early evening, followed by Bora wind gusts of up to 53mph around 9pm. Lost 1" of snow depth to wind in last 24h. |
| 2026-02-18 | 7:00 AM | 0.27 | 4.7 | 0.28 | 4.0 | NA | | Tmax: 31 (10am) / 41 right after midnight yesterday; Tmin: 18 last evening / 17 since midnight. Snowfall came in three distinct batches: 1.0/0.06" by 9am; 0.8/0.05" by 2:30pm; 2.9/0.16" in evening (over by midnight). The latter one was clearly a "bull's-eye" for northwest Boulder County on the radar loop for several hours (probably 1"+/hour during the peak that I missed). Peak gust: 50mph right around 9-10am, after the first snow shower. |
| 2026-02-17 | 6:30 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 51 (missed daily record by 3F); Tmin: 31 by midnight, as well as before early observing time today (chosen to be before incoming snow). Peak gust: 44mph. Another record-low "snowpack" for the date. |
| 2026-02-16 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 45; Tmin: 26 yestermorning / 36 since midnight (which would be a daily record if it weren't for the cool-down later today). Peak gust: 60mph late. Back to record-breaking lack of snow on the ground. |
| 2026-02-15 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.0 | NA | | Tmax: 39; Tmin: 23. Temperatures in last few days are typical for late March, not mid-February. We are on track for the warmest winter on record, along with the least snow (for the season). |
| 2026-02-14 | 7:00 AM | 0.13 | 1.8 | 0.13 | 1.5 | NA | | Tmax: 40; Tmin: 22. Snow fell last evening, after sunset and before midnight. Weak upslope associated with it. |
| 2026-02-13 | 7:00 AM | T | T | T | T | NA | | Tmax: 42; Tmin: 26 before midnight / 23 since then. Peak gust: 35mph early yesterday. |
| 2026-02-12 | 7:00 AM | T | T | T | T | NA | | Tmax: 41; Tmin: 29 (colder later today). Peak gust: 48mph. Light spillover snow shower in mid-afternoon. |
| 2026-02-11 | 7:00 AM | 0.08 | 1.3 | 0.08 | 1.0 | NA | | Tmax: 32 (actually, that was right after midnight yesterday - the daytime high was 27F); Tmin: 17 right around midnight last night. Measurable snow fell mid-day (was done when I got here), I'd say from about 11am to 2pm. |
| 2026-02-10 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 49 (another daily record); Tmin: 18 (a bit colder later today). Peak gust: 41mph yestermorning. Continued record-breaking lack of snow cover (Day 4 at a trace). |
| 2026-02-09 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 43; Tmin: 30. Peak gust: 45mph. Continued record-breaking lack of snow cover. |
| 2026-02-08 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 44; Tmin: 31 (daily record). Peak gust: 53mph. Continued record-breaking lack of snow cover. |
| 2026-02-07 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 49 (daily record); Tmin: 33 (got down to 32 later today). Record-breaking lack of snow cover, now down to a trace. |
| 2026-02-06 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.0 | NA | | Tmax: 51 (daily record - by 5F!); Tmin: 30 before midnight / 25 since then. Last day with 50% snow coverage. |
| 2026-02-05 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 42; Tmin: 18 yestermorning / 31 since midnight. |
| 2026-02-04 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 31; Tmin: 21 by midnight / 14 since then. Peak gust: 46mph in AM. |
| 2026-02-03 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 41; Tmin: 25 (21 later today). Peak gust: 44mph. |
| 2026-02-02 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.0 | NA | | Tmax: 44; Tmin: 32 (25 later today). Peak gust: 45mph. |
| 2026-02-01 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.5 | NA | | Tmax: 37; Tmin: 26 yestermorning / 27 since midnight. Peak gust: 59mph. January 2026 Statistics: Precipitation = 0.79" (73% of 1991-2020 normal); Snowfall = 11.9" (68%); Temperature = 23.7F (+1.1F). The wettest (snowiest) day was the 8th, with 0.20/2.9", both of which were (wimpy) daily records (the driest daily records remain 0.12/1.5" on the 20th of January, back in 2004). The warmest temperatures occurred early in the month, with 46F for Tmax on the 3rd (new daily record), while 33F for the Tmin on the 1st was not warm enough for a record. The 2nd of January was the first ever January day with measurable precipitation but no measurable snowfall (since 1991). The first four days of the month also featured only a trace of snow on the ground - unprecedented as well! 30F for Tmin on the 3rd, 12th and 13th tied/broke/tied the daily records for those dates, respectively. A cold snap in the latter half of the month broke three daily Tmax AND Tmin records in a row (23rd-25th) - on the cold end: 11/-6, 16/-4, and 10/-11F. Those were also the first three dates with subzero lows, setting a record for the latest such occurrence since 1991. End of month snow depth: 2.5" (still record-low). The seasonal snowfall total so far is only 33.3", breaking the previous record from 1994-95 by more than 2". There were only 4 days with less than 30mph wind gusts, in contrast with 10 over 50mph (highest: 69mph on the 4th). |
| 2026-01-31 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.5 | NA | | Tmax: 30; Tmin: 19 yestermorning / 23 since midnight. Peak gust: 33mph. |
| 2026-01-30 | 7:00 AM | T | T | T | 2.5 | NA | | Tmax: 25; Tmin: 16 yestermorning / 18 since midnight. Peak gust: 39mph. Light spillover snow, not measurable. |
| 2026-01-29 | 7:00 AM | T | T | T | 2.5 | NA | | Tmax: 35 (1st above freezing in 7 days); Tmin: 19 by midnight / 15 since then. Peak gust: 51mph. |
| 2026-01-28 | 7:00 AM | 0.00 | 0.0 | 0.00 | 3.0 | NA | | Tmax: 28; Tmin: 18 yestermorning / 22 since midnight (and colder again later today). Peak gust: 45mph. |
| 2026-01-27 | 7:00 AM | 0.00 | 0.0 | 0.00 | 3.0 | NA | | Tmax: 23; Tmin: 8 yestermorning / 17 since midnight. Peak gust: 61mph around noon yesterday. |
| 2026-01-26 | 7:00 AM | 0.06 | 1.0 | 0.06 | 3.5 | NA | | Tmax: 10 (coldest day of the month / winter, and daily record #3!); Tmin: -11F last evening (also cold daily record #3), before arctic air got flushed out, and -2F since midnight. Peak gust: 34mph late last evening. Snow fell before midnight. |
| 2026-01-25 | 7:00 AM | 0.02 | 0.4 | 0.02 | 3.0 | NA | | Tmax: 16 (2nd daily Tmax record in a row); Tmin: -4 last evening (new daily record #2) as well as this morning (much colder later today). Snowfall split evenly between last evening and this morning (0.2" each). |
| 2026-01-24 | 7:00 AM | 0.16 | 2.1 | 0.16 | 3.5 | NA | | Tmax: 11 (late in evening; daylight high: +4F(!); nevertheless, 11F was still cold enough to set a new daily record by 3F); Tmin: -3 last evening before the unusual warm-up with no wind / +3F since midnight (and colder again later today). Snow began in afternoon, measured 1.5" by midnight (0.12"), rest since then (0.6/0.04"). |
| 2026-01-23 | 7:00 AM | T | T | T | 1.5 | NA | | Tmax: 32; Tmin: 04 by midnight / -6F since then (first subzero reading of this winter, latest ever in 36 years; also cold enough to break one of the easier daily records: -1F in 2014). Overnight snow based on neighbor's observation. Peak gust: 36mph in AM yesterday. |
| 2026-01-22 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 34; Tmin: 12 before midnight / 22 since then (and much colder again later today). Peak gust: 58mph yestermorning. |
| 2026-01-21 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.0 | NA | | Tmax: 34; Tmin: 19 by midnight / 18 since then (and colder later today). Peak gust: 59mph in morning hours yesterday. |
| 2026-01-20 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.5 | NA | | Tmax: 28; Tmin: 08 yestermorning / 21 since midnight (and colder again later today). Peak gust: 44mph to compact our "snowpack" again. |
| 2026-01-19 | 7:00 AM | 0.13 | 2.3 | 0.13 | 3.5 | NA | | Tmax: 35; Tmin: 11 before midnight / 06 since then. Peak gust: 45mph. Snow overnight, heaviest after midnight (1.8/0.10 since then), and over by this morning. Nice to be calm and sunny now. |
| 2026-01-18 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 23; Tmin: 09 yestermorning / 20 since midnight (colder again later today). Peak gust: 50mph. |
| 2026-01-17 | 7:00 AM | T | T | T | 1.5 | NA | | Tmax: 22; Tmin: 06. Peak gust: 59mph. |
| 2026-01-16 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 39; Tmin: 11 by midnight / 10 since then. Peak gust: 50mph. There may have been some flurries - if so, they were blown off the snowboard by the time I got home. |
| 2026-01-15 | 7:00 AM | 0.00 | 0.0 | 0.00 | 1.5 | NA | | Tmax: 44; Tmin: 31 (much colder later today). Peak gust: 35mph. |
| 2026-01-14 | 7:00 AM | T | T | T | 1.5 | NA | | Tmax: 39; Tmin: 29. Peak gust: 43mph. |
| 2026-01-13 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.0 | NA | | Tmax: 43; Tmin: 30 (tied daily record). Peak gust: 35mph. |
| 2026-01-12 | 7:00 AM | 0.00 | 0.0 | 0.00 | 2.5 | NA | | Tmax: 40; Tmin: 27 yestermorning / 30 since midnight (a new daily record for the 12th by 4F). Peak gust: 31mph. |
| 2026-01-11 | 7:00 AM | 0.00 | 0.0 | 0.00 | 3.0 | NA | | Tmax: 32; Tmin: 13 yestermorning / 23 since midnight. Peak gust: 38mph. |
| 2026-01-10 | 7:00 AM | 0.00 | 0.0 | 0.00 | 3.0 | NA | | Tmax: 18; Tmin: 08. Off to Columbine to get our yearly taste of decent XC conditions. Low snowpack for them (just over two feet), but so much better than around here... |
| 2026-01-09 | 7:00 AM | 0.20 | 2.9 | 0.20 | 3.5 | NA | | Tmax: 29; Tmin: 12 by midnight / 07 since then. Snow fell during daytime, accompanied by light winds around 10mph. It was enough to crack two of the easier daily records: old ones were 0.13/2.4" (10 years ago) for the 8th of January. |
| 2026-01-08 | 7:00 AM | T | T | T | 1.0 | NA | | Tmax: 39; Tmin: 20 (colder later today). Peak gust: 38mph. |
| 2026-01-07 | 7:00 AM | T | T | T | 1.5 | NA | | Tmax: 34; Tmin: 25. Peak gust: 64mph (around noon). |
| 2026-01-06 | 7:00 AM | 0.20 | 3.2 | 0.20 | 2.5 | NA | | Tmax: 36; Tmin: 23 by midnight / 22 since then. Peak gust: 50mph very early yesterday. Snow began around 3pm, totaling 2.8" by midnight (0.17" H2O), and another 0.4" (0.03") since then - a good spill-over event. Peak gust: 50mph. |
| 2026-01-05 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 45 (tied daily record); Tmin: 28 by midnight / 29 since then (and colder again later today). Peak gust: 69mph (ouch; around 10am). |
| 2026-01-04 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 46 (new daily record by 2F); Tmin: 35 (but colder later today). Peak gust: 35mph. |
| 2026-01-03 | 7:00 AM | T | T | T | T | NA | | Tmax: 37; Tmin: 32 by midnight / 30 since then (ties the daily record for the 3rd). Spill-over flurries, wind gust peak: 39mph. |
| 2026-01-02 | 7:00 AM | 0.02 | T | T | T | NA | | Tmax: 43; Tmin: 33 both before and after midnight, thus dodging another daily record. However, we had our first ever "rainy" day in January, as the rain-snow mix never fully converted and melted off the snowboard as it fell. Peak gust: 31mph. |
| 2026-01-01 | 7:00 AM | 0.00 | 0.0 | 0.00 | T | NA | | Tmax: 46 (yet another daily record, by 3F); Tmin: 38 (colder later today). Here are the statistics for the month of December 2025: 1.00/15.5" (90%/83% of the 1991-2020 normals). More than half of that fell on the 3rd of December (0.58/9.9", not enough for daily records). The seasonal snowfall has reached 21.4", my 2nd lowest on record for September-December. Snow depth peaked at 8" on the 4th and dropped all the way to a trace from the 22nd to the 27th (and again on the evening of the 31st). If memory serves, this is only the 2nd time on record with a just a trace of snow on the ground around Xmas (1994 was the previous depressing case like that). The real grim statistics deal with our temperatures: December ended up above freezing: 32.5F which is 10.5F above normal, by far the biggest warm anomaly of any month on record (June 1990 onwards). The previous record for the biggest warm anomaly was November 1999, with +8.0F. The previous record for December was just last year with 29.2F (3.3F colder than this year). There were eight new daily Tmax records (plus three tied records) as well as TEN new daily Tmin records (also plus three tied records), both by far the most of any month since my observations started more than 35 years ago. All of these records were on the warm side, of course. The warmest values were reached right before Christmas, with 56F for Tmax on the 23rd and 40F for Tmin on the 22nd. Both of these values are 2nd only to the early December heat wave of 2021 that holds the monthly records of 59 and 42F, respectively. After the second warmest November on record, we are definitely not on track for a "good" winter season. Here is hoping that January turns things around. Almost forgot to mention that the neighborhood wunderground station reported 48mph yesterday, a fitting end to a month with 24 such days (above 40mph), and a record-tieing total of five days with 70mph, and a record gust of 89mph on the 19th of the month. |