Meshtitsa Observatory | Bulgaria
Weather Statistics
Astronomical-night cloud and ambient temperature archive from CloudWatcher telemetry
Archive Overview
Archived Nights
481
2025-05-18 to 2026-09-21
Clear Nights
226
Nights with at least 50% clear astronomical-darkness samples
Equivalent Clear Hours
2013.1
57% clear-sample share across the full archive
Ambient Span
-10.9 °C to 27.4 °C
Weighted night average 9.6 °C
Clear Night Cadence
Last 7 Nights
5
7 archived nights in the rolling week
Last 30 Nights
19
176.8 clear-equivalent hours
Last 365 Nights
152
358 nights in the rolling yearly archive
2026 Archive
123
259 nights currently stored for 2026
Filter And Export
Visible archive: 0 nights, 0 clear nights, 0.0 clear-equivalent hours, ambient average —
Cloud And Temperature Dashboard
Night Quality Trend
Last 24 visible nights · stacked by clear/cloudy/overcast sample share
Loading cloud-quality chart...
Clear
Cloudy
Overcast
Ambient Temperature Bands
Last 24 visible nights · min/max band with weighted nightly average
Loading temperature bands...
Average
Clear-dominant band
Cloudy-dominant band
Overcast-dominant band
Weekly Monthly Yearly Rollups
Weekly
Most recent visible ISO weeks
| Period | Nights | Clear | Clear-Night % | Clear h | Avg T | Min / Max |
|---|---|---|---|---|---|---|
| Loading weekly rollups... | ||||||
Monthly
Most recent visible months
| Period | Nights | Clear | Clear-Night % | Clear h | Avg T | Min / Max |
|---|---|---|---|---|---|---|
| Loading monthly rollups... | ||||||
Yearly
Full visible archive by calendar year
| Period | Nights | Clear | Clear-Night % | Clear h | Avg T | Min / Max |
|---|---|---|---|---|---|---|
| Loading yearly rollups... | ||||||
Nightly Warehouse Table
Showing 0 of 481 archived nights
| Loading nightly weather warehouse... | ||||||||||||
Page 1 of 1 | Rows 0-0