Regional Climate Report
June 2026 — Bethlehem, Free State
Temperature
3.3–17.4°C
Mean: 9.8°C
Rainfall
18.5 mm
231% of normal
Frost Days
0
ET₀
5.9 mm
12% of normal
Temperature & Cold
Temperature
| Coldest | 2.3°C (2 Jun) |
| Hottest | 20.4°C (1 Jun) |
| Avg min | 3.3°C |
| Avg max | 17.4°C |
| Mean | 9.8°C |
Frost & Hail
| Frost days | 0 |
| Sub-zero days | 0 |
| Normal frost days | 14 |
| Hail days | 0 |
Chill Units (Utah Model) Very Low
38
Total CU
9.5
Avg/day
18.5
Best day
4/4
Chill days
200 CU
Low-chill peaches & nectarines
400 CU
Medium peaches, plums, early apricots
600 CU
Most peach varieties
800 CU
Apples & pears (standard varieties)
1000 CU
High-chill apples (Granny Smith, Fuji)
Very few chill units accumulated. Season may not have started or conditions are too warm. Period: 1 Jun – 30 Jun.
Water & Moisture
Rainfall
| Total | 18.5 mm |
| Rain days | 1 |
| Max daily | 18.5 mm (4 Jun) |
| Normal | 8 mm |
| % of Normal | 231% |
Dry Spells & Rain Intensity
| Longest dry spell | 3 days (from 1 Jun) |
| Heavy rain days (≥20mm) | 0 |
Evapotranspiration (ET₀)
| Period total | 5.9 mm |
| Daily average | 1.5 mm/day |
| Normal | 50 mm |
| % of Normal | 12% |
Humidity
| Average | 70% |
| Minimum | 30% |
| Maximum | 100% |
| Very dry days (<30%) | 0 |
Atmospheric
Wind
| Max gust | 18.5 km/h (4 Jun) |
| Avg speed | 7.1 km/h |
| Windy days (>50 km/h) | 0 |
Pressure
| Avg range | 0–0 hPa |
| Absolute min | 0 hPa |
| Absolute max | 0 hPa |
Growing & Solar
Growing Degree Days
| GDD (base 10°C) | 3 °Cd |
| GDD (base 8°C) | 9 °Cd |
| Avg daily (base 10) | 0.7 °Cd/day |
VPD (Vapour Pressure Deficit)
| Avg max VPD | 1.23 kPa |
| Peak VPD | 1.68 kPa |
| Stress days (>2.0 kPa) | 0 |
Daily Data
| Date | Min °C | Max °C | Rain mm | Hum % | Gust km/h | Wind km/h | hPa | Solar W/m² | Strikes | Closest km | Frost | Hail |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon 1 Jun | 2.7 | 20.4 | – | 66 | 11.1 | 6.5 | – | – | – | – | ||
| Tue 2 Jun | 2.3 | 19.6 | – | 65 | 14.8 | 7.6 | – | – | – | – | ||
| Wed 3 Jun | 3 | 17.8 | – | 68 | 13 | 5.5 | – | – | – | – | ||
| Thu 4 Jun | 5.1 | 11.8 | 18.5 | 82 | 18.5 | 8.8 | – | – | – | – |
Data from 1 public station in the Bethlehem region. 4 days with data in this period. Baselines from SAWS/ARC climate normals (1991–2020).