Climate Change Chart of Heavenly, USA

Overview of climate changes

Changes in snowfall

Averaged across calendar months, mean daily snowfall had a difference of +0.88 mm/day. This unweighted summary concerns daily amounts and should not be read as a monthly total or as a uniform change throughout the year. The largest monthly increase was in December, with a difference of +10.95 mm/day; the largest decrease was in November, at a difference of -4.14 mm/day. These contrasting monthly differences indicate that the mean summarizes varied month-to-month changes.

Temperature changes

Averaged across calendar months, monthly mean temperature shows a difference of +3.36 °C compared with the earlier reference period; this is an unweighted comparison of monthly means, not a day-weighted annual figure or a measure of daytime highs. The largest monthly increase was in June, with a difference of +4.86 °C. This identifies the strongest increase among the supplied monthly differences, rather than implying that every month changed by the same amount.

Changes in rainfall

Averaged across calendar months, mean daily rainfall had a difference of +0.07 mm/day compared with the earlier reference period. This summarizes the unweighted monthly means and describes daily amounts, not monthly rainfall totals. The largest monthly increase occurred in February, at a difference of +0.34 mm/day. By contrast, November had the largest decrease, a difference of -0.48 mm/day; these monthly contrasts show why the overall mean does not describe every month.

Changes in sunshine duration

Mean daily sunshine duration, averaged across calendar months, had a difference of -0.03 hours/day compared with the earlier reference period. This is an unweighted summary of monthly mean daily hours, not a day-weighted annual measure. The largest increase was in November, with a difference of +0.24 hours/day, while July recorded the largest decrease, at a difference of -0.16 hours/day. These are monthly mean daily sunshine differences, not descriptions of every day's conditions.