Today is #Ottawa's first -1°C of the season. Typical first is October 13. Record earliest is Sep 14, 1911/1935; latest Nov 12, 1998. #YowWx #OttWeather
Today's ~6am temperature (-1.6°C) was #Ottawa's coldest temperature since Apr 24th. #YowWx #OttWeather
Tomorrow's forecast low of -3°C could be the lowest temperature #Ottawa has recorded since Apr 21st. #YowWx #OttWeather
Tomorrow's forecast low of -2°C could be the lowest temperature #Ottawa has recorded since Apr 24th. #YowWx #OttWeather
Today's 17.4mm of rain brought #Ottawa just 77.4mm from 1st place for most rain year-to-date Oct 16. #YowWx #OttWeather
#Ottawa's total rain so far this year is 892.6 mm, 277 mm above the October 16 median of 615.5 mm #YowWx #OttWeather
Near record rain. 24.2mm of rain brought #Ottawa within 2.7 mm of the most rain recorded on Oct 13th. #YowWx #OttWeather
Near record rain. 20.6mm of rain brought #Ottawa within 6.3 mm of the most rain recorded on Oct 13th. #YowWx #OttWeather
Historically, today is #Ottawa's last day of the year with a median high temperature ≥ 15°C. #YowWx #OttWeather
Yesterday between 9am➜noon, the temp jumped from 6.9°C➜17.8°C which was #Ottawa's largest 3-hour jump since Mar 3rd, 2025 #YowWx #OttWeather
Yesterday between 8am➜noon, the temp jumped from 4.4°C➜17.8°C which was #Ottawa's largest 4-hour jump since Mar 3rd, 2025 #YowWx #OttWeather
Today is #Ottawa's first #frost of the season. Typical first is October 10. Record earliest is Sep 6, 1888; latest Oct 27, 2011. #YowWx #OttWeather
With a mean wind of 23.5km/h, yesterday was #Ottawa's windiest day since Jun 19th. #YowWx #OttWeather
For only the 12th time in recorded history, #Ottawa stayed above 3.9°C during an entire September (September 2026). #YowWx #OttWeather

























